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Mendeliome v1.2543 LSM1 Zornitza Stark edited their review of gene: LSM1: Added comment: LSM1 encodes a subunit of a complex composed of proteins LSM1-7 which is involved in mRNA stabilisation as well as degradation. Other proteins within the complex are yet to have a definitive disease association however LSM7 has been reported a candidate gene.

3 papers detail 10 affected individuals from 6 families with either a homozygous recurrent splice variant (LSM1:c.231+4A>C) or a homozygous missense variant (LSM1:p.Asn40Tyr in only 1 family). Both very rare in gnomad v4 with 0 homozygotes.

The phenotype of the individuals encompassed severe intellectual disability/developmental delay, shared dysmorphic features (broad forehead, pointed chin, medially thickened arched eyebrows, hypertelorism, bulbous nasal tip), skeletal anomalies, cardiovascular (ASD/VSD/aortic valve) and genitourinary abnormalities (CAKUT/hypospadias), gastrointestinal manifestations, hypotonia and visual impairments.

RT PCR of the splice variant demonstrated exon 3 skipping with a resultant truncated protein with presumed loss of function mechanism. It was noted by authors there are no biallelic loss of function variant in the gnomad v4, as such it was suggested complete loss of function is non viable. Variants outside of exon 3 have not yet been reported in affected individuals.; Changed rating: GREEN; Changed publications: 31010896, 36100156, 40204357; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, LSM1-related
Mendeliome v1.2533 PCNA Bryony Thompson Marked gene: PCNA as ready
Mendeliome v1.2533 PCNA Bryony Thompson Gene: pcna has been classified as Amber List (Moderate Evidence).
Mendeliome v1.2533 PCNA Bryony Thompson Classified gene: PCNA as Amber List (moderate evidence)
Mendeliome v1.2533 PCNA Bryony Thompson Gene: pcna has been classified as Amber List (Moderate Evidence).
Mendeliome v1.2500 GIPC1_OPDM2_CGG Bryony Thompson OPDM2 was changed to GIPC1_OPDM2_CGG
Mendeliome v1.2479 PCNA Sangavi Sivagnanasundram gene: PCNA was added
gene: PCNA was added to Mendeliome. Sources: ClinGen
Mode of inheritance for gene: PCNA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PCNA were set to 24911150, 33426167, 36990216
Phenotypes for gene: PCNA were set to hereditary ataxia MONDO:0100309
Review for gene: PCNA was set to AMBER
Added comment: Classified as Limited by Cerebellar Ataxia GCEP on 09/04/2025 - https://search.clinicalgenome.org/CCID:008778

Two missense variants have been reported across 5 families. Both the missense variants are present in gnomAD (rare enough for AR gene). Method of pathogenicity is still unknown.
Affected individuals reported with ataxia, photosensitivity, telangiectasias, and some degree of intellectual disability.
Sources: ClinGen
Mendeliome v1.2426 SPAG6 Zornitza Stark gene: SPAG6 was added
gene: SPAG6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SPAG6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SPAG6 were set to 35232447; 38073178; 32124190
Phenotypes for gene: SPAG6 were set to Spermatogenic failure, MONDO:0004983, SPAG6-related
Review for gene: SPAG6 was set to GREEN
Added comment: i) PMID: 35232447- two homozygous variants (F1 II-1: p. A103D; F2 II-1:p. K196Sfs*6) in two unrelated Han Chinese men with nonsyndromic asthenoteratozoospermia with severe multiple morphological abnormalities of the sperm flagella. Immunostaining and WB showed lower SPAG6 expression in spermatozoa of both affected males. The couple with the missense variant as able to conceive successfully after undergoing ICSI.
ii) PMID: 38073178- a homozygous missense p.R310W in three brothers (two brothers with both asthenozoospermia and oligozoospermia, third brother with azoospermia)
iii) PMID: 32124190- a novel compound heterozygous variant (c.143_145del: p.48_49del, c.585delA: p.Lys196Serfs*6) in an infertile PCD patient with severe with asthenoteratozoospermia, presented with morphological defects of sperm flagella and lower mRNA and protein expression in mutant sperm.
Sources: Literature
Mendeliome v1.2369 CFAP54 Zornitza Stark edited their review of gene: CFAP54: Added comment: PMID 37725231: three probands from two families with PCD, supportive mouse models x2.; Changed rating: AMBER; Changed publications: 26224312, 36593121, 37725231; Changed phenotypes: Spermatogenic failure 98, MIM# 621124, HCiliary dyskinesia, primary, 54, MIM# 621125
Mendeliome v1.2368 CFAP54 Zornitza Stark gene: CFAP54 was added
gene: CFAP54 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CFAP54 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CFAP54 were set to 26224312; 36593121
Phenotypes for gene: CFAP54 were set to Spermatogenic failure 98, MIM# 621124; Hydrocephalus, male infertility, mucus accumulation
Review for gene: CFAP54 was set to RED
Added comment: PMID 36593121: Three men identified with bi-allelic variants and multiple morphologic abnormalities of the flagella or non-obstructive azoospermia.

PMID: 26224312: Homozygous mice have PCD characterized by hydrocephalus, male infertility (spermatogenesis defects in flagella maturation), and mucus accumulation. Brain analysis showed mild dilatation of the lateral ventricles. Tracheal cilia beat frequency was significantly reduced. The gene was highest expressed in the testis and lungs
Sources: Literature
Mendeliome v1.2163 ARPC3 Bryony Thompson Marked gene: ARPC3 as ready
Mendeliome v1.2163 ARPC3 Bryony Thompson Gene: arpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.2163 ARPC3 Bryony Thompson Classified gene: ARPC3 as Amber List (moderate evidence)
Mendeliome v1.2163 ARPC3 Bryony Thompson Gene: arpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.2162 ARPC3 Bryony Thompson gene: ARPC3 was added
gene: ARPC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARPC3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARPC3 were set to 36928819; 26166300
Phenotypes for gene: ARPC3 were set to Charcot-Marie-Tooth disease MONDO:0015626
Review for gene: ARPC3 was set to AMBER
Added comment: Posterior probability association (PPA) 0.995 for Charcot-Marie Tooth disease under a dominant MOI in the 100,000 Genomes project “Rareservoir” using a Bayesian statistical method - BeviMed. 549 CMT cases and 54,856 controls used in BeviMed analysis. 5 rare variants (missense, splice region, a splice acceptor site) enriched in the CMT cohort (n=14).
Additionally, ArpC3 conditional knockout mice fail to ensheath axons causing axon dysfunction.
Sources: Literature
Mendeliome v1.2138 ANAPC1 Zornitza Stark Tag founder tag was added to gene: ANAPC1.
Mendeliome v1.2135 G6PC Sangavi Sivagnanasundram reviewed gene: G6PC: Rating: GREEN; Mode of pathogenicity: None; Publications: https://search.clinicalgenome.org/CCID:008420; Phenotypes: glycogen storage disease I MONDO:0002413; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.2135 ANAPC1 Sangavi Sivagnanasundram reviewed gene: ANAPC1: Rating: GREEN; Mode of pathogenicity: None; Publications: https://search.clinicalgenome.org/CCID:008429; Phenotypes: Rothmund-Thomson syndrome type 1 MONDO:0016368; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.2087 MARK2 Chirag Patel gene: MARK2 was added
gene: MARK2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MARK2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MARK2 were set to PMID: 39419027, 39436150
Phenotypes for gene: MARK2 were set to Neurodevelopmental disorder MONDO:0700092
Mode of pathogenicity for gene: MARK2 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: MARK2 was set to GREEN
Added comment: 31 individuals with autism spectrum disorder (30/31), intellectual disability/developmental delay (100%), motor delay (62%), speech-language problems (100%), seizure/epilepsy (46%), behaviour disorders (ADHD, aggression, anxiety)(74%), and distinctive facial features (narrow face, abnormal or broad forehead, downslanting palpebral fissures, and large or dysplastic ears).

WES/WGS identified 25 LOF and 6 missense variants in MARK2 gene (Microtubule affinity-regulating kinase 2) which contributes to establishing neuronal polarity and developing dendritic spines. LOF variants were de novo (16/25), inherited (4/25), or unk (5/25). All 6 missense variants were de novo and clustered in the kinase or KA1 domains.

The mRNA and protein expression of MARK2 in PBMCs were significantly lower in affected individuals with LOF variants than in the control group. In vitro expression assay of missense variants supported the effect of MARK2 loss. Proband-derived and CRISPR-engineered isogenic induced pluripotent stem cells (iPSCs) showed MARK2 loss leads to early neuronal developmental and functional deficits, including anomalous polarity and disorganization in neural rosettes, as well as imbalanced proliferation and differentiation in neural progenitor cells (NPCs). Mark2+/- mice showed abnormal cortical formation and partition and ASD-like behaviour. Through the use of RNA sequencing (RNA-seq) and lithium treatment, they linked MARK2 loss to downregulation of the WNT/β-catenin signaling pathway and identified lithium as a potential drug for treating MARK2-associated ASD.
Sources: Literature
Mendeliome v1.1998 MRPL42 Mark Cleghorn gene: MRPL42 was added
gene: MRPL42 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: MRPL42 was set to BIALLELIC, autosomal or pseudoautosomal
Phenotypes for gene: MRPL42 were set to complex neurodevelopmental disorder MONDO:0100038
Penetrance for gene: MRPL42 were set to unknown
Review for gene: MRPL42 was set to RED
Added comment: Bjorn Fischer-Zirnsak, Charite Berlin
ESHG presentation 4/6/24, unpublished

++ supportive functional data (on patient-derived cells) presented, but only 1 case

Biallelic MRPL42 LoF with lethal mitochondrial disease

Index case, born to consanguineous parents
Small
Hypotonia
Seizures
Conductive hearing impairment
CV: hypertrophic RV, small VSD
Hepatomegaly
Lactic acidosis

Homozygous MRPL42: c.219+6T>A (spliceAI 0.83 donor loss)
RNASeq and RT-PCR supportive of aberrant splicing resulting in out of frame exon 4 skipping
Sources: Other
Mendeliome v1.1913 PCBP2 Ain Roesley Marked gene: PCBP2 as ready
Mendeliome v1.1913 PCBP2 Ain Roesley Gene: pcbp2 has been classified as Green List (High Evidence).
Mendeliome v1.1913 PCBP2 Ain Roesley Classified gene: PCBP2 as Green List (high evidence)
Mendeliome v1.1913 PCBP2 Ain Roesley Gene: pcbp2 has been classified as Green List (High Evidence).
Mendeliome v1.1912 PCBP2 Ain Roesley gene: PCBP2 was added
gene: PCBP2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PCBP2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: PCBP2 were set to 38965372
Phenotypes for gene: PCBP2 were set to neurodevelopmental disorder MONDO:0700092, PCBP2-related
Review for gene: PCBP2 was set to GREEN
gene: PCBP2 was marked as current diagnostic
Added comment: 3x individuals with de novo variants
Motor and speech delay and ASD
2x missense + 1x fs

There are 2 NMD variants with 9 and 8 hets respectively in gnomad v4, however the IGV looks to be low quality
Sources: Literature
Mendeliome v1.1778 KCNIP4 Ain Roesley gene: KCNIP4 was added
gene: KCNIP4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: KCNIP4 was set to Unknown
Publications for gene: KCNIP4 were set to 33826137
Phenotypes for gene: KCNIP4 were set to seizures; epilepsy
Review for gene: KCNIP4 was set to RED
gene: KCNIP4 was marked as current diagnostic
Added comment: single paper describing insertions of L1 retrotransposons in KCNIP4
samples were post-mortem of resected temporal cortex from individuals with idiopathic temporal lobe epilepsy

1x de novo insertion of L1 in KCNIP4 however ddPCR revealed that this did NOT alter KCNIP4 mRNA expression
Sources: Literature
Mendeliome v1.1770 C2orf71 Sangavi Sivagnanasundram reviewed gene: C2orf71: Rating: ; Mode of pathogenicity: None; Publications: https://search.clinicalgenome.org/CCID:005738; Phenotypes: PCARE-related retinopathy MONDO:0800404; Mode of inheritance: None
Mendeliome v1.1633 USP14 Zornitza Stark gene: USP14 was added
gene: USP14 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: USP14 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: USP14 were set to 38469793; 35066879
Phenotypes for gene: USP14 were set to Syndromic disease MONDO:0002254, USP14-related
Review for gene: USP14 was set to GREEN
Added comment: PMID 35066879: 3 fetuses from 2 different branches of a consanguineous family, presenting with distal arthrogryposis, underdevelopment of the corpus callosum, and dysmorphic facial features. Exome sequencing identified a biallelic 4-bp deletion (c.233_236delTTCC; p.Leu78Glnfs*11) in USP14, and sequencing of family members showed segregation with the phenotype. Ubiquitin-specific protease 14 (USP14) encodes a major proteasome-associated deubiquitinating enzyme with an established dual role as an inhibitor and an activator of proteolysis, maintaining protein homeostasis. Usp14-deficient mice show a phenotype similar to lethal human multiple congenital contractures phenotypes, with callosal anomalies, muscle wasting, and early lethality, attributed to neuromuscular junction defects due to decreased monomeric ubiquitin pool. RT-qPCR experiment in an unaffected heterozygote revealed that mutant USP14 was expressed, indicating that abnormal transcript escapes nonsense-mediated mRNA decay.

PMID 38469793: biallelic USP14 variants in four individuals from three unrelated families: one fetus, a newborn with a syndromic NDD, and two siblings affected by a progressive neurological disease. Specifically, the two siblings from the latter family carried two compound heterozygous variants c.8T>C p.(Leu3Pro) and c.988C>T p.(Arg330*), while the fetus had a homozygous frameshift c.899_902del p.(Lys300Serfs*24) variant and the newborn patient harbored a homozygous frameshift c.233_236del p.(Leu78Glnfs*11) variant. The fetus and the newborn had extensive brain malformations.
Sources: Literature
Mendeliome v1.1570 PCSK2 Bryony Thompson Classified gene: PCSK2 as Red List (low evidence)
Mendeliome v1.1570 PCSK2 Bryony Thompson Gene: pcsk2 has been classified as Red List (Low Evidence).
Mendeliome v1.1564 PCSK2 Hali Van Niel gene: PCSK2 was added
gene: PCSK2 was added to Mendeliome. Sources: Other
Mode of inheritance for gene: PCSK2 was set to Unknown
Publications for gene: PCSK2 were set to 26607656; 7698505; 17618154
Phenotypes for gene: PCSK2 were set to diabetes mellitus MONDO:0005015
Review for gene: PCSK2 was set to RED
Added comment: Cannot find any evidence of association with mendelian disease

PMID: 26607656

10 SNPs genotyped, genetic polymorphisms responsible for glucose homeostasis and incidental diabetes

PMID: 7698505
DNA polymorphism found in 11% of non insulin dependent diabetes patients (out of 152 japanese patients) vs 4% in health population (out of 102 japanese patients).

PMID: 17618154
29 SNPS analysed across PCSK2, 4 SNPS associated type 2 diabetes in african american population
Sources: Other
Mendeliome v1.1522 HNRNPC Zornitza Stark Phenotypes for gene: HNRNPC were changed from Neurodevelopmental disorder (MONDO:0700092), HNRNPC-related to Intellectual developmental disorder-74, MIM#620688
Mendeliome v1.1521 HNRNPC Zornitza Stark edited their review of gene: HNRNPC: Changed phenotypes: intellectual developmental disorder-74, MIM#620688
Mendeliome v1.1513 NUP160 Melanie Marty changed review comment from: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes.

PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria.

PMID: 33456446 1 x family (2 sibs) with steroid-resistant nephrotic syndrome and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy.

PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse mode using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS.; to: PMID: 30910934 1 x patient with familial steroid-resistant nephrotic syndrome (SRNS) and FSGS carried novel compound-heterozygous variants in NUP160 (R1173X and E803K). Silencing of Drosophila NUP160 specifically in nephrocytes (fly renal cells) led to functional abnormalities, reduced cell size and nuclear volume, and disorganized nuclear membrane structure. These defects were completely rescued by the expression of the wild-type human NUP160 gene in nephrocytes.

PMID: 30179222 1 x family (2 sibs) with compound het variants E803K and Arg910X. 1 Sib had SRNS and FSGS, the other had proteinuria.

PMID: 33456446 1 x family (2 sibs) with SRNS and chronic kidney disease. Homozygous for NUP160 c.1179+5G>A, confirmed by RT-PCR to cause abnormal splicing [r.1102_1179del;p.(Phe368_Gln393del)]. These individuals also had additional neurological features of intellectual disability and epilepsy.

PMID: 38224683 Generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse model using CRISPR/Cas9 and Cre/loxP technologies. They showed that Nup160podKO mice develop typical signs of NS.
Mendeliome v1.1486 PCYT1A Zornitza Stark Phenotypes for gene: PCYT1A were changed from Spondylometaphyseal dysplasia with cone-rod dystrophy, MIM# 608940; Congenital lipodystrophy to Spondylometaphyseal dysplasia with cone-rod dystrophy, MIM# 608940; Lipodystrophy, congenital generalized, type 5, MIM# 620680
Mendeliome v1.1485 PCYT1A Zornitza Stark edited their review of gene: PCYT1A: Changed phenotypes: Spondylometaphyseal dysplasia with cone-rod dystrophy, MIM# 608940, Lipodystrophy, congenital generalized, type 5, MIM# 620680
Mendeliome v1.1408 CEP192 Chern Lim gene: CEP192 was added
gene: CEP192 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CEP192 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: CEP192 were set to 37981762
Phenotypes for gene: CEP192 were set to microcephaly, short stature, limb-extremity dysplasia, and reduced testicular size
Review for gene: CEP192 was set to RED
gene: CEP192 was marked as current diagnostic
Added comment: PMID: 37981762:
- In one family, chet missense p.His638Tyr and p.Asn1917Ser segregated with microcephaly, short stature, limb-extremity dysplasia, and reduced testicular size in two affected siblings. Both sibs also fulfilled dx for mosaic variegated aneuploidy (MVA) syndrome and have tetraploidy.
- A lower but substantial proportion of MVA/tetraploidy cells was observed in II-1, II-2, and II-4 (who are het for one of the variants).

- In the same family, each variants in heterozygous state segregated with infertility and/or reduced testicular size in the proband’s father and maternal uncle.
- Variant screening of CEP192 coding regions performed for 1264 unrelated males with idiopathic infertility.
- Asn1917Ser was also detected in three additional unrelated infertile males with reduced testicular volumes.
- Two other missense and two synonymous variants were repeatedly detected in infertile males.

- qPCR showed CEP192 expression was decreased in individuals with c.1912C>T His638Tyr, mini-gene assay showed that c.1912C>T His638Tyr led to the skipping of exon 14, predicted to result in NMD.
- Epithelial cells cultured in vitro from patients with biallelic variants showed the number of cells arrested during the prophase increased because of the failure of spindle formation.

- Embyronic mouse lethality in Cep192-/- (hom for His638Tyr), Cep192M/M (hom for Asn1917Ser) and Cep192-/M (chet).
- Embryos of Cep192M/M mice had significant increase of MVA and tetraploidy cells.
- Number of apoptotic cells increased in Cep192M/M embryos compared with that of Cep192+/+, similar result in Cep192-/- embryos.
- Male mice with Cep192 heterozygous variants replicated infertility

Conclusions:
- Association of this gene with autosomal recessive disease has not been established.
- Association of monoallelic variants in this gene with infertility is not well established:
- Two variants with some supportive evidence from mouse model.
Sources: Literature
Mendeliome v1.1396 TRAPPC4 Zornitza Stark Phenotypes for gene: TRAPPC4 were changed from intellectual disability; epilepsy; spasticity; microcephaly to Neurodevelopmental disorder with epilepsy, spasticity, and brain atrophy, MIM# 618741
Mendeliome v1.1395 TRAPPC4 Zornitza Stark edited their review of gene: TRAPPC4: Changed phenotypes: Neurodevelopmental disorder with epilepsy, spasticity, and brain atrophy, MIM# 618741
Mendeliome v1.1377 ARPC5 Zornitza Stark Phenotypes for gene: ARPC5 were changed from Combined immunodeficiency, ARPC5-related MONDO:0015131 to Immunodeficiency 133 with autoimmunity and autoinflammation, MIM# 620565
Mendeliome v1.1376 ARPC5 Zornitza Stark commented on gene: ARPC5: Features of autoinflammation common: haemolytic anaemia, thrombocytopenia, hepatosplenomegaly, leukocytosis, neutrophilia, and elevated acute phase reactants. More variable systemic features may include coeliac disease or enteropathy, ileus, nephropathy, eczema, and dermatomyositis.
Mendeliome v1.1376 ARPC5 Zornitza Stark reviewed gene: ARPC5: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Immunodeficiency 133 with autoimmunity and autoinflammation, MIM# 620565; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.1226 SNAPC4 Zornitza Stark Phenotypes for gene: SNAPC4 were changed from Neurodevelopmental disorder (MONDO#0700092), SNAPC4-related to Neurodevelopmental disorder with motor regression, progressive spastic paraplegia, and oromotor dysfunction, MIM# 620515
Mendeliome v1.1158 DBR1 Zornitza Stark edited their review of gene: DBR1: Added comment: PMID: 37656279:
- A homozygous missense as a founder recessive DBR1 variant in four consanguineous families.
- Total of 7 affected children. WES done for one proband from each family.
- Consistent features include prematurity, severe intrauterine growth deficiency, congenital ichthyosis-like presentation (collodion membrane, severe skin peeling and xerosis), and death before the first year of life.
- RNA and protein studies using fibroblasts derived from a patient are supportive of pathogenicity: RNA-seq, rt-qPCR and western blotting, showing marked reduction of DBR1 level and intronic RNA lariat accumulation in the patient sample.
- Haplotype analysis revealed that the four families all share a haplotype extending at least 2.27 Mb around the c.200A>G p.(Tyr67Cys) DBR1 founder variant.
- Authors proposed this is a novel DBR1-related developmental disorder that is distinct from DBR1-related encephalitis susceptibility, and highlighted the apparent lack of correlation with the degree of DBR1 deficiency.; Changed publications: 29474921, 37656279; Changed phenotypes: {Encephalitis, acute, infection (viral)-induced, susceptibility to, 11}, MIM# 619441, Viral infections of the brainstem, Ichthyosis (MONDO#0019269), DBR1-related
Mendeliome v1.1109 HNRNPC Zornitza Stark Marked gene: HNRNPC as ready
Mendeliome v1.1109 HNRNPC Zornitza Stark Gene: hnrnpc has been classified as Green List (High Evidence).
Mendeliome v1.1109 HNRNPC Zornitza Stark Classified gene: HNRNPC as Green List (high evidence)
Mendeliome v1.1109 HNRNPC Zornitza Stark Gene: hnrnpc has been classified as Green List (High Evidence).
Mendeliome v1.1108 HNRNPC Zornitza Stark gene: HNRNPC was added
gene: HNRNPC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: HNRNPC was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: HNRNPC were set to 37541189
Phenotypes for gene: HNRNPC were set to Neurodevelopmental disorder (MONDO:0700092), HNRNPC-related
Review for gene: HNRNPC was set to GREEN
Added comment: 13 individuals with global developmental delay, intellectual disability, behavioral abnormalities, and subtle facial dysmorphology with heterozygous HNRNPC germline variants. Five had an identical in-frame deletion of nine amino acids in the extreme C terminus. Supportive functional data; haploinsufficiency is the mechanism.
Sources: Literature
Mendeliome v1.1071 GPRC5B Lucy Spencer gene: GPRC5B was added
gene: GPRC5B was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GPRC5B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GPRC5B were set to 37143309
Phenotypes for gene: GPRC5B were set to Megalencephalic leukoencephalopathy with subcortical cysts 3 620447
Review for gene: GPRC5B was set to GREEN
Added comment: PMID: 37143309
Cohort of 5 patients with an MRI based diagnosis of megalencephalic leukoencephalopathy with subcortical cysts (MLC). 3 unrelated patients had variants in GPRC5B, 2 have the same inframe dup Ile175dup and the third has an in frame dup of Ala177. All 3 were de novo and unaffected siblings did not have the variants. All patients have macrocephaly, delayed motor development, seizures, all had varying degrees of cognitive deficits. 2 also had spasticity, ataxia and dystonia. MRI showed MLC, abnormal and swollen cerebral white matter.

Patient cell lines showed reduced regulatory volume decrease, and western blot showed a strong increase in GRPC5B levels in patient lymphoblasts. Together, these findings indicate disturbed volume regulation in lymphoblasts from patients with GPRC5B variants, potentially due to increased GPRC5B levels. Transfected cells caused increased volume-regulated anion channel activity.
Sources: Literature
Mendeliome v1.965 ARPC5 Elena Savva Classified gene: ARPC5 as Green List (high evidence)
Mendeliome v1.965 ARPC5 Elena Savva Gene: arpc5 has been classified as Green List (High Evidence).
Mendeliome v1.964 ARPC5 Elena Savva Classified gene: ARPC5 as Green List (high evidence)
Mendeliome v1.964 ARPC5 Elena Savva Gene: arpc5 has been classified as Green List (High Evidence).
Mendeliome v1.963 ARPC5 Elena Savva Marked gene: ARPC5 as ready
Mendeliome v1.963 ARPC5 Elena Savva Gene: arpc5 has been removed from the panel.
Mendeliome v1.961 ARPC5 Paul De Fazio gene: ARPC5 was added
gene: ARPC5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARPC5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ARPC5 were set to 37349293; 37382373
Phenotypes for gene: ARPC5 were set to Combined immunodeficiency, ARPC5-related MONDO:0015131
Review for gene: ARPC5 was set to GREEN
gene: ARPC5 was marked as current diagnostic
Added comment: 4 individuals from 3 families reported with homozygous LoF variants. All had recurrent and severe infections. Other developmental anomalies were present but seemed variable.

PMID:37349293 reports 2 unrelated patients. Both had scoliosis. One had neurodevelopmental delay and brain atrophy. Patient 1 died at 15yo after a sudden episode of hemoptysis and hematochezia. Patient 2 died at 1yo because of progressive neurologic and respiratory disease; an autopsy was not performed.

PMID:37382373 reports 2 patients from the same family. One had multiple congenital anomalies including a congenital heart defect (CHD) (patent foramen ovale), cleft palate, and hypoplastic corpus callosum. The sibling also had CHD (moderate pulmonary stenosis and atrial septal defect).

Functional studies and a mouse model were supportive of the disease association.
Sources: Literature
Mendeliome v1.908 PRSS8 Lucy Spencer gene: PRSS8 was added
gene: PRSS8 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PRSS8 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PRSS8 were set to 36715754
Phenotypes for gene: PRSS8 were set to ichthyosis MONDO:0019269, PRSS8-related
Review for gene: PRSS8 was set to AMBER
Added comment: PMID: 36715754
1 family with 3 affected sons with congenital ichthyosis, consanguineous parents. All 3 affected members are homozygous for a canonical splice in PRSS8, quantitative RT-PCR showed a significant reduction in normal PRSS8 transcript.

A second family with 4 affected members (proband and 3 cousins) with ichthyosis (3 also had autism), also consanguineous. Only the proband was tested who is homozygous for a missense in PTSS8. However this patient also had a TAAR1 missense (no disease association, but the paper suggests this could be responsible for the autism phenotype- KO mice have abnormal learning behaviour).
Sources: Literature
Mendeliome v1.898 NPR1 Lilian Downie gene: NPR1 was added
gene: NPR1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NPR1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NPR1 were set to PMID: 37080586
Phenotypes for gene: NPR1 were set to Genetic hypertension MONDO:0015512
Review for gene: NPR1 was set to GREEN
Added comment: 4 sibs with systemic hypertension in the neonatal period - presenting with cardiogenic shock, with homozygous variants (consanguineous parents), parents confirmed heterozygotes. 3/4 infants had increased NT (>3.5) in utero
RT-PCR shows dramatic reduction of RNA levels
2 sibs in a second family, normal NT and pregnancy, neonatal systematic hypertension presenting with cardiogenic shock,
Sources: Literature
Mendeliome v1.848 NAF1 Bryony Thompson gene: NAF1 was added
gene: NAF1 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: NAF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: NAF1 were set to 27510903
Phenotypes for gene: NAF1 were set to Pulmonary fibrosis and/or bone marrow failure, telomere-related MONDO:0000148
Review for gene: NAF1 was set to GREEN
Added comment: At least 3 probands/families with telomere-related pulmonary fibrosis and a supporting mouse model
PMID: 27510903 - 5 individuals from 2 unrelated families with pulmonary fibrosis-emphysema and extrapulmonary manifestations including myelodysplastic syndrome and liver disease, with LoF variants. Truncated NAF1 was detected in cells derived from patients, and, in cells in which a frameshift mutation was introduced by genome editing telomerase RNA levels were reduced. Shortened telomere length also segregated with the variants. A Naf1+/- mouse model had reduced telomerase RNA levels

ClinVar - 1 nonsense and 2 splice site variants (ID: 2443185, 1338525, 2443184) called LP by the Genetic Services Laboratory, University of Chicago but no clinical details were provided
- SCV002547372.1 - Garcia Pulmonary Genetics Research Laboratory, Columbia University Irving Medical Center - at least one individual with pulmonary fibrosis and leukocyte telomere length (by qPCR) less than 10th percentile age-adjusted
Sources: Expert list
Mendeliome v1.837 DNAH7 Chern Lim gene: DNAH7 was added
gene: DNAH7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DNAH7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DNAH7 were set to 34476482; 35543642
Phenotypes for gene: DNAH7 were set to non-syndromic male infertility due to sperm motility disorder (MONDO#0017173), DNAH7-related
Review for gene: DNAH7 was set to GREEN
gene: DNAH7 was marked as current diagnostic
Added comment: PMID: 34476482 (Wei et al 2021):
- Hom/chet missense DNAH7 variants in three unrelated infertile patients with idiopathic asthenozoospermia, presented with primary ciliary dyskinesia (PCD)-associated symptoms.
- Functional studies showed expression of DNAH7 in the spermatozoa from the DNAH7-defective patients was significantly decreased.

PMID: 35543642 (Gao et al 2022):
- One proband with idiopathic asthenozoospermia, presented a history of PCD-like symptoms. Hom frameshift variant predicted to cause NMD, both parents are heterozygous.
- Immunofluorescent staining showed DNAH7 signal significantly decreased or was even completely absent in the sperm from the investigated patient.
Sources: Literature
Mendeliome v1.775 SNAPC4 Zornitza Stark Marked gene: SNAPC4 as ready
Mendeliome v1.775 SNAPC4 Zornitza Stark Gene: snapc4 has been classified as Green List (High Evidence).
Mendeliome v1.775 SNAPC4 Zornitza Stark Classified gene: SNAPC4 as Green List (high evidence)
Mendeliome v1.775 SNAPC4 Zornitza Stark Gene: snapc4 has been classified as Green List (High Evidence).
Mendeliome v1.774 SNAPC4 Ee Ming Wong changed review comment from: - Ten individuals from eight families with neurodevelopmental disorder found to be compound heterozygous for variants in SNAPC4
- Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice
- Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts
Sources: Literature; to: - Ten individuals from eight families with neurodevelopmental disorder found to be biallelic for variants in SNAPC4
- Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice
- Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts
Sources: Literature
Mendeliome v1.774 RNH1 Krithika Murali changed review comment from: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis.
Sources: Literature; to: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis. No antenatal features reported.
Sources: Literature
Mendeliome v1.774 SNAPC4 Ee Ming Wong gene: SNAPC4 was added
gene: SNAPC4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SNAPC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SNAPC4 were set to 36965478
Phenotypes for gene: SNAPC4 were set to Neurodevelopmental disorder (MONDO#0700092), SNAPC4-related
Review for gene: SNAPC4 was set to GREEN
gene: SNAPC4 was marked as current diagnostic
Added comment: - Ten individuals from eight families with neurodevelopmental disorder found to be compound heterozygous for variants in SNAPC4
- Identified variants included 6x missense, 1x nonsense, 1x frameshift and 6x splice
- Depletion of SNAPC4 levels in HeLa cell lines via genomic editing led to decreased snRNA expression and global dysregulation of alternative splicing, similarly observed in patient fibroblasts
Sources: Literature
Mendeliome v1.773 RNH1 Krithika Murali gene: RNH1 was added
gene: RNH1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNH1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNH1 were set to PMID: 36935417
Phenotypes for gene: RNH1 were set to RNH1-related disorder
Review for gene: RNH1 was set to AMBER
Added comment: PMID: 36935417 report two siblings from a consanguineous Somali family with homozygous RNH1 splice site variant (c.615-2A>C) with congenital cataracts, global developmental delay, hypotonia, seizures (focal and generalised) and regression in the context of infection. RT-PCR and RNASeq of skeletal muscle supported exon 7 skipping with an in-frame deletion involving 57 amino acids with reduced expression on Western blot analysis.
Sources: Literature
Mendeliome v1.765 PPCS Bryony Thompson Publications for gene: PPCS were set to 29754768
Mendeliome v1.764 PPCS Bryony Thompson Classified gene: PPCS as Green List (high evidence)
Mendeliome v1.764 PPCS Bryony Thompson Gene: ppcs has been classified as Green List (High Evidence).
Mendeliome v1.763 PPCS Bryony Thompson reviewed gene: PPCS: Rating: GREEN; Mode of pathogenicity: None; Publications: 35616428, 29754768; Phenotypes: Cardiomyopathy, dilated, 2C, MIM# 618189; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.763 PPCDC Bryony Thompson Marked gene: PPCDC as ready
Mendeliome v1.763 PPCDC Bryony Thompson Gene: ppcdc has been classified as Red List (Low Evidence).
Mendeliome v1.763 PPCDC Bryony Thompson gene: PPCDC was added
gene: PPCDC was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPCDC was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPCDC were set to 36564894
Phenotypes for gene: PPCDC were set to dilated cardiomyopathy MONDO:0005021
Review for gene: PPCDC was set to RED
Added comment: Single family reported with two siblings with a fatal cardiac phenotype including dilated cardiomyopathy with biallelic variants p.Thr53Pro and p.Ala95Val. Patient-derived fibroblasts showed an absence of PPCDC protein, and nearly 50% reductions in CoA levels. The cells showed clear energy deficiency problems, with defects in mitochondrial respiration, and mostly glycolytic ATP synthesis. Functional studies performed in yeast suggest these mutations to be functionally relevant.
Sources: Literature
Mendeliome v1.742 RNPC3 Zornitza Stark Phenotypes for gene: RNPC3 were changed from Growth hormone deficiency; Intellectual disability to Pituitary hormone deficiency, combined or isolated, 7, MIM# 618160
Mendeliome v1.741 RNPC3 Zornitza Stark edited their review of gene: RNPC3: Changed phenotypes: Pituitary hormone deficiency, combined or isolated, 7, MIM# 618160
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. Particularly, Eph overexpressed flies had a poorer performance compared to controls in negative geotaxis assay. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram changed review comment from: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature; to: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.711 EPHA10 Achchuthan Shanmugasundram gene: EPHA10 was added
gene: EPHA10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EPHA10 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: EPHA10 were set to 36048850
Phenotypes for gene: EPHA10 were set to postlingual non-syndromic genetic hearing loss, MONDO:0016298
Mode of pathogenicity for gene: EPHA10 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: EPHA10 was set to RED
Added comment: Comment on rating: This gene should be rated RED as this gene has been associated with post-lingual autosomal dominant non-syndromic hearing loss from a single family, and supported by functional studies.

PMID:36048850 reported the identification of a heterozygous non-coding variant c.-81_-73delinsAGC cosegregating with hearing loss. Although variants have been identified in KIF17 and USP48 in several members of this family, they did not cosegregate with hearing loss. One affected member of this family had an ideal hearing restoration after cochlear implantation.

Epha10 was expressed in mouse cochlea at both transcription and translation levels. In addition, EPHA10 mRNA was detected upregulated in patients compared with controls by qRT-PCR. Overexpression of Eph (the homolog of human EPHA10) altered the structure and function of chordotonal organ (equivalent to mammalian auditory organs) in fly model. These functional evidence suggests that 'gain of function' may be responsible for the hearing loss phenotype.

This gene has not yet been associated with any phenotypes in OMIM or Gene2Phenotype.
Sources: Literature
Mendeliome v1.700 PCK2 Bryony Thompson Classified gene: PCK2 as Amber List (moderate evidence)
Mendeliome v1.700 PCK2 Bryony Thompson Gene: pck2 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.699 PCK2 Bryony Thompson reviewed gene: PCK2: Rating: AMBER; Mode of pathogenicity: None; Publications: 36845668; Phenotypes: Peripheral neuropathy (MONDO#0005244), PCK2-related; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.649 PMEL Paul De Fazio gene: PMEL was added
gene: PMEL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PMEL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PMEL were set to 36166100; 36207673
Phenotypes for gene: PMEL were set to Oculocutaneous albinism, PMEL-related MONDO:0018910
Review for gene: PMEL was set to RED
gene: PMEL was marked as current diagnostic
Added comment: A consanguineous family with oculocutaneous albinism and Hirschsprung disease was found to have a biallelic LoF variant in PMEL, which although NMD-predicted was found not to result in NMD by RT-PCR.

Some evidence that polymorphisms in this gene influence pigmentation in cattle.
Sources: Literature
Mendeliome v1.635 TPCN2 Paul De Fazio reviewed gene: TPCN2: Rating: AMBER; Mode of pathogenicity: Other; Publications: 36641477; Phenotypes: Hypopigmentation of the skin, TPCN2-related MONDO:0019290; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown; Current diagnostic: yes
Mendeliome v1.633 PCK2 Ain Roesley Phenotypes for gene: PCK2 were changed from PEPCK deficiency, mitochondrial - MIM#261650 to PEPCK deficiency, mitochondrial - MIM#261650; peripheral neuropathy (MONDO#0005244), PCK2-related
Mendeliome v1.632 PCK2 Ain Roesley reviewed gene: PCK2: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: peripheral neuropathy (MONDO#0005244), PCK2-related; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v1.604 TRPC5 Zornitza Stark Marked gene: TRPC5 as ready
Mendeliome v1.604 TRPC5 Zornitza Stark Gene: trpc5 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.604 TRPC5 Zornitza Stark Phenotypes for gene: TRPC5 were changed from Intellectual disability; autistic spectrum disorder to Neurodevelopmental disorder, MONDO:0700092, TRPC5-related
Mendeliome v1.603 TRPC5 Zornitza Stark Classified gene: TRPC5 as Amber List (moderate evidence)
Mendeliome v1.603 TRPC5 Zornitza Stark Gene: trpc5 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.601 TRPC5 Hazel Phillimore gene: TRPC5 was added
gene: TRPC5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRPC5 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Publications for gene: TRPC5 were set to PMID: 36323681; 24817631; 23033978; 33504798; 28191890
Phenotypes for gene: TRPC5 were set to Intellectual disability; autistic spectrum disorder
Review for gene: TRPC5 was set to AMBER
Added comment: PMID: 36323681; Leitão E. et al. (2022) Nat Commun.13(1):6570:
Missense variant NM_012471.2:c.523C>T, p.(Arg175Cys in three brothers with intellectual disability (ID) and autistic spectrum disorder (ASD), inherited from an asymptomatic mother and absent in the maternal grandparents.
Whole cell patch clamp studies of HEK293 created by site-directed mutagenesis showed increased current of this calcium channel (constitutively opened).
(This variant is absent in gnomAD v2.1.1).

Also, the nonsense variant, c.965G> A, p.(Trp322*) was found in a high functioning ASD male (maternally inherited), NMD-predicted.

Other papers and TRPC5 variants that were cited to associate this gene with X-linked ID and/or ASD include:
PMID: 24817631; Mignon-Ravix, C. et al. (2014) Am. J.Med. Genet. A 164A: 1991–1997: A hemizygous 47-kb deletion in Xq23 including exon 1 of the TRPC5 gene. He had macrocephaly, delayed psychomotor development, speech delay, behavioural problems, and autistic features. Maternally inherited, and a family history compatible with X-linked inheritance (i.e., maternal great uncle was also affected, although not tested).

In addition, PMID: 36323681; Leitão E. et al. (2022) cites papers with the variants p.(Pro667Thr), p.(Arg71Gln) and p.(Trp225*).
NB. p.(Pro667Thr) is absent in gnomAD (v2.1.1), p.(Arg71Gln) is also absent (the alternative variant p.(Arg71Trp) is present once as heterozygous only). p.(Trp225*) is absent, and it should be noted that PTCs / LoF variants are very rare (pLI = 1).

However, looking further into the three references, the evidence is not as clear or as accurate as was stated.

The missense variant c.1999C>A, p.(Pro667Thr), was stated as de novo, but was actually maternally inherited but was still considered a candidate for severe intellectual disability (shown in the Appendix, Patient 93, with severe speech delay, autism spectrum disorder and Gilles de la Tourette). This patient also has a de novo MTF1 variant. Reference: PMID: 23033978; de Ligt, J. et al. (2012) N. Engl. J. Med. 367: 1921–1929).

Missense variant (de novo): c.212G>A, p.(Arg71Gln), was found as part of the Deciphering Developmental Disorders (DDD) study and is shown in individual 164 in Supplementary Table 2 of PMID: 33504798; Martin, HC. et al. (2021) Nat. Commun.12: 627. Also displayed in DECIPHER (DDD research variant) with several phenotype traits, but ID and ASD are not specifically mentioned.

Nonsense variant: c.674G>A. p.(Trp225*) was stated as de novo but was inherited (reference PMID: 28191890; Kosmicki, JA. et al. (2017) Nat. Genet. 49: 504–510. Supplement Table 7). This was a study of severe intellectual delay, developmental delay / autism. (NB. The de novo p.(Arg71Gln) variant from the DDD study is also listed (subject DDD 342 in Supplement 4 / Table 2).
Sources: Literature
Mendeliome v1.587 PHLDB1 Seb Lunke gene: PHLDB1 was added
gene: PHLDB1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PHLDB1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PHLDB1 were set to 36543534
Phenotypes for gene: PHLDB1 were set to osteogenesis imperfecta, MONDO:0019019
Review for gene: PHLDB1 was set to AMBER
Added comment: 5 children from two consanguineous families with recurrent fractures and/or osteopaenia, platyspondyly, short and bowed long bones, and widened metaphyses. Metaphyseal and vertebral changes regressed after early childhood, and no fractures occurred under bisphosphonate treatment.

Two independent nonsense variants were identified in the families, NM_001144758.3:c.2392dup (p.Leu798Profs*4) and NM_001144758.3:c.2690_2693del (p.Leu897Glnfs*24). RT-PCR and western blot analysis confirmed loss of transcript and protein product, respectively, but no further functional data provided.
Sources: Literature
Mendeliome v1.531 MPC2 Zornitza Stark Marked gene: MPC2 as ready
Mendeliome v1.531 MPC2 Zornitza Stark Gene: mpc2 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.531 MPC2 Zornitza Stark Classified gene: MPC2 as Amber List (moderate evidence)
Mendeliome v1.531 MPC2 Zornitza Stark Gene: mpc2 has been classified as Amber List (Moderate Evidence).
Mendeliome v1.530 MPC2 Zornitza Stark gene: MPC2 was added
gene: MPC2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MPC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MPC2 were set to 36417180
Phenotypes for gene: MPC2 were set to mitochondrial pyruvate carrier deficiency, MONDO:0013877, MPC2-related
Review for gene: MPC2 was set to AMBER
Added comment: Four patients from two unrelated consanguineous families reported with homozygous variants (missense and stop-loss). Siblings from family 1 were diagnosed prenatally with diffuse subcutaneous oedema, cardiomegaly, corpus callosum agenesis, ventriculomegaly and hypoplasia of the cerebellum. Siblings from family 2 had slightly different presentations, which included anoxo-ischemic encephalopathy, isolated dyspnea, neonatal respiratory distress, neonatal jaundice, hypotonia, visual impairment, microcephaly; both siblings had severe delayed psychomotor development. Immunoblot analysis of protein expression in lysates from patient-derived fibroblasts demonstrated reduced MPC1 and MPC2 protein levels.
Sources: Literature
Mendeliome v1.529 Zornitza Stark removed gene:NPC1 from the panel
Mendeliome v1.511 NPC1 Naomi Baker gene: NPC1 was added
gene: NPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NPC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NPC1 were set to 36417180
Phenotypes for gene: NPC1 were set to mitochondrial pyruvate carrier deficiency, MONDO:0013877, MPC2-related
Review for gene: NPC1 was set to AMBER
Added comment: Four patients from two unrelated consanguineous families reported with homozygous variants (missense and stop-loss). Siblings from family 1 were diagnosed prenatally with diffuse subcutaneous oedema, cardiomegaly, corpus callosum agenesis, ventriculomegaly and hypoplasia of the cerebellum. Siblings from family 2 had slightly different presentations, which included anoxo-ischemic encephalopathy, isolated dyspnea, neonatal respiratory distress, neonatal jaundice, hypotonia, visual impairment, microcephaly; both siblings had severe delayed psychomotor development. Immunoblot analysis of protein expression in lysates from patient-derived fibroblasts demonstrated reduced MPC1 and MPC2 protein levels.
Sources: Literature
Mendeliome v1.501 ARPC4 Zornitza Stark Phenotypes for gene: ARPC4 were changed from Neurodevelopmental disorder, ARPC4-related MONDO#0700092 to Developmental delay, language impairment, and ocular abnormalities, MIM# 620141
Mendeliome v1.500 ARPC4 Zornitza Stark edited their review of gene: ARPC4: Changed phenotypes: Developmental delay, language impairment, and ocular abnormalities, MIM# 620141
Mendeliome v1.476 ARPC4 Zornitza Stark Phenotypes for gene: ARPC4 were changed from Microcephaly; mild motor delays; significant speech impairment to Neurodevelopmental disorder, ARPC4-related MONDO#0700092
Mendeliome v1.475 ARPC4 Zornitza Stark reviewed gene: ARPC4: Rating: GREEN; Mode of pathogenicity: None; Publications: 35047857; Phenotypes: Neurodevelopmental disorder, ARPC4-related MONDO#0700092; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v1.418 G6PC Zornitza Stark Tag treatable tag was added to gene: G6PC.
Mendeliome v1.366 MED11 Ain Roesley gene: MED11 was added
gene: MED11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MED11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MED11 were set to 36001086
Phenotypes for gene: MED11 were set to neurodevelopmental disorder MONDO#0700092, MED11-related
Review for gene: MED11 was set to GREEN
gene: MED11 was marked as current diagnostic
Added comment: 7 affected from 5 families (3x consang) with the same recurrent variant of p.(Arg109*).

Protein truncating, NOT NMD as proven by RT-PCR and western blot. Zebrafish knockout model recapitulates key clinical phenotypes

NO evidence of founder effect from haplotype analysis

7/7 cerebral dysgyria, cortical atrophy
5/7 limb contracture
4/7 epilepsy
3/7 families with IUGR
3/7 GDD
3/7 hearing loss
3/7 undescended testis
2/7 nystagmus
1/7 congenital cataract
Sources: Literature
Mendeliome v1.357 DAW1 Alison Yeung gene: DAW1 was added
gene: DAW1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DAW1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DAW1 were set to 36074124
Phenotypes for gene: DAW1 were set to Primary ciliary dyskinesia, MONDO:0016575; Visceral heterotaxy, MONDO:0018677
Review for gene: DAW1 was set to GREEN
Added comment: Biallelic variants identified in two unrelated families. Zebrafish model recapitulates PCD and heterotaxy phenotype
Sources: Literature
Mendeliome v1.354 FKBP6 Dean Phelan gene: FKBP6 was added
gene: FKBP6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: FKBP6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: FKBP6 were set to PMID: 36150389
Phenotypes for gene: FKBP6 were set to Spermatogenic failure (MONDO:0004983), FKBP6-related
Review for gene: FKBP6 was set to GREEN
Added comment: PMID: 36150389 - large cohort study of men with severe spermatogenic failure (SPGF), identified six individuals with rare bi-allelic loss of function variants in FKBP6. RT-qPCR and immunofluorescence confirmed lack of FKBP6 expression. In mice, Fkbp6 has also been shown to be essential for spermatogenesis.
Sources: Literature
Mendeliome v1.343 PCCB Zornitza Stark Tag treatable tag was added to gene: PCCB.
Mendeliome v1.343 PCCA Zornitza Stark Tag treatable tag was added to gene: PCCA.
Mendeliome v1.338 ARPC1B Zornitza Stark Tag treatable tag was added to gene: ARPC1B.
Mendeliome v1.319 TRAPPC10 Zornitza Stark Phenotypes for gene: TRAPPC10 were changed from neurodevelopmental disorder (MONDO:0700092), TRAPPC10-related to Neurodevelopmental disorder with microcephaly, short stature, and speech delay, MIM# 620027
Mendeliome v1.318 TRAPPC10 Zornitza Stark reviewed gene: TRAPPC10: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Neurodevelopmental disorder with microcephaly, short stature, and speech delay, MIM# 620027; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v1.183 IKZF1 Zornitza Stark edited their review of gene: IKZF1: Added comment: PMID 35333544: Eight individuals harboring heterozygous IKZF1R183H or IKZF1R183C variants associated with GOF effects reported. The clinical phenotypes and pathophysiology associated with IKZF1R183H/C differ from those of previously reported patients with IKZF1HI, IKZF1DN, and IKZF1DD and should therefore be considered as a novel IKAROS-associated disease entity. This condition is characterized by immune dysregulation manifestations including inflammation, autoimmunity, atopy, and polyclonal PC proliferation.; Changed publications: 21548011, 26981933, 29889099, 31057532, 7923373, 11805317, 35333544; Changed phenotypes: Immunodeficiency, common variable, 13 MIM# 616873, recurrent bacterial respiratory infections, Thrombocytopaenia, immunodeficiency, Hypogammaglobulinaemia, decrease B-cells, decrease B-cell differentiation, decrease memory B/T cells, Low Ig, pneumocystis early CID onset, Immune dysregulation
Mendeliome v1.129 PABPC1 Elena Savva Marked gene: PABPC1 as ready
Mendeliome v1.129 PABPC1 Elena Savva Gene: pabpc1 has been classified as Green List (High Evidence).
Mendeliome v1.129 PABPC1 Elena Savva Classified gene: PABPC1 as Green List (high evidence)
Mendeliome v1.129 PABPC1 Elena Savva Gene: pabpc1 has been classified as Green List (High Evidence).
Mendeliome v1.128 PABPC1 Elena Savva gene: PABPC1 was added
gene: PABPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PABPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: PABPC1 were set to PMID: 35511136
Phenotypes for gene: PABPC1 were set to Neurodevelopmental disorder, PABPC1-related (MONDO#0700092)
Review for gene: PABPC1 was set to GREEN
Added comment: PMID: 35511136 - 4 probands with an overlapping phenotype of DD, expressive speech delay, and autistic features and heterozygous de novo variants that cluster in the PABP domain of PABPC1.
Electroporation of mouse embryo brains showed that Pabpc1 knockdown decreases the proliferation of neural progenitor cells. Wild-type Pabpc1 could rescue this disturbance, whereas 3 of the 4 variants did not.
Sources: Literature
Mendeliome v1.3 PCDHGC4 Zornitza Stark Phenotypes for gene: PCDHGC4 were changed from Intellectual disability; Seizures to Neurodevelopmental disorder with poor growth and skeletal anomalies, MIM# 619880
Mendeliome v1.2 PCDHGC4 Zornitza Stark edited their review of gene: PCDHGC4: Changed phenotypes: Neurodevelopmental disorder with poor growth and skeletal anomalies, MIM# 619880
Mendeliome v0.14595 GPC4 Zornitza Stark Marked gene: GPC4 as ready
Mendeliome v0.14595 GPC4 Zornitza Stark Gene: gpc4 has been classified as Green List (High Evidence).
Mendeliome v0.14595 GPC4 Zornitza Stark Phenotypes for gene: GPC4 were changed from to Keipert syndrome OMIM# 301026
Mendeliome v0.14594 GPC4 Zornitza Stark Publications for gene: GPC4 were set to
Mendeliome v0.14593 GPC4 Zornitza Stark Mode of inheritance for gene: GPC4 was changed from Unknown to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Mendeliome v0.14553 MPC1 Zornitza Stark Marked gene: MPC1 as ready
Mendeliome v0.14553 MPC1 Zornitza Stark Gene: mpc1 has been classified as Green List (High Evidence).
Mendeliome v0.14553 MPC1 Zornitza Stark Phenotypes for gene: MPC1 were changed from to Mitochondrial pyruvate carrier deficiency, MIM# 614741
Mendeliome v0.14552 MPC1 Zornitza Stark Publications for gene: MPC1 were set to
Mendeliome v0.14551 MPC1 Zornitza Stark Mode of inheritance for gene: MPC1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.14550 MPC1 Zornitza Stark reviewed gene: MPC1: Rating: GREEN; Mode of pathogenicity: None; Publications: 22628558, 34873722; Phenotypes: Mitochondrial pyruvate carrier deficiency, MIM# 614741; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.14401 PCDH12 Zornitza Stark Marked gene: PCDH12 as ready
Mendeliome v0.14401 PCDH12 Zornitza Stark Gene: pcdh12 has been classified as Green List (High Evidence).
Mendeliome v0.14401 PCDH12 Zornitza Stark Phenotypes for gene: PCDH12 were changed from to Diencephalic-mesencephalic junction dysplasia syndrome 1, MIM# 251280
Mendeliome v0.14400 PCDH12 Zornitza Stark Publications for gene: PCDH12 were set to
Mendeliome v0.14399 PCDH12 Zornitza Stark Mode of inheritance for gene: PCDH12 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.14398 PCDH12 Zornitza Stark reviewed gene: PCDH12: Rating: GREEN; Mode of pathogenicity: None; Publications: 27164683, 30178464; Phenotypes: Diencephalic-mesencephalic junction dysplasia syndrome 1, MIM# 251280; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.14392 PCK1 Zornitza Stark Marked gene: PCK1 as ready
Mendeliome v0.14392 PCK1 Zornitza Stark Gene: pck1 has been classified as Green List (High Evidence).
Mendeliome v0.14392 PCK1 Zornitza Stark Phenotypes for gene: PCK1 were changed from to Phosphoenolpyruvate carboxykinase deficiency, cytosolic MIM#261680; Disorders of gluconeogenesis
Mendeliome v0.14391 PCK1 Zornitza Stark Publications for gene: PCK1 were set to
Mendeliome v0.14390 PCK1 Zornitza Stark Mode of inheritance for gene: PCK1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13683 DUSP6 Krithika Murali changed review comment from: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.

PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided. Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.
Mendeliome v0.13683 DUSP6 Krithika Murali changed review comment from: 1 study cited by OMIM (Miraoui et al 2013) - heterozygous variants in 5 unrelated individuals with congenital hypogonadotrophic hypogonadism (CHH). 4/5 variants highly prevalent in healthy population and/or in conjunction with variants in other genes either known to be associated with CHH or possibly associated. No additional studies published since this paper.

PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.; to: PMID: 23643382 Miraoui et al 2013 - - candidate gene study for genes in the FGFR1 pathway that may be associated with CHH, either as causative genes or disease modifiers. A cohort of 386 CHH individuals and 155 unaffected controls of European descent. A number of affected individuals included in this cohort already had known causative variants in CHH-associated genes. The coding exons and proximal introns (≥15 bp from splice sites) of FGF17, FGF18, IL17RD, DUSP6, SPRY2, SPRY4, and FLRT3 were amplified by PCR and determined by direct sequencing.

Summary of DUSP6 variants identified in this study
c.229 T>A p.(Phe77Ile) - absent gnomAD v2 and v3
c.545C>T p.(Ser182Phe) - 203 hets gnomad v2, 137 hets and 1 hom - v3 - identified in conjunction with FGFR1 variant in this individual
c.566A>G p.Asn189Ser - v2 57 hets, v3 29 hets (another individual identified with this variant and an SPRY4 variant)
c.1037C>T p.Thr346Met - 81 hets v2, 27 hets and 1 hom v3 (identified in conjunction with SPRY4 variant

No segregation information provided.

PMID: 23643382 - Dusp6 null mouse model reportedly has craniofacial defects and hearing defects, but no mention of hypogonadotropic hypogonadism. In 5 unrelated individuals with congenital hypogonadotropic hypogonadism 4 heterozygous missense were identified. In 3 of the probands, the DUSP6 mutation was accompanied by a heterozygous missense mutation in another HH-associated gene. 3 of the 4 variants have subpopulation allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Thr346Met (AJ AF 0.002797), p.Ser182Phe (NFE AF 0.001396), p.Asn189Ser (NFE AF 0.0003641). No functional assays were conducted.

PMID: 32389901 - 6 unrelated male Chinese Kallman syndrome cases with 4 DUSP6 missense variants. 2 of 4 variants have East Asian allele frequencies in gnomAD v2.1 that are higher than expected for a dominant condition: p.Pro188Leu (EAS AF 0.001203), p.Arg83Gln (EAS AF 0.001129). No functional assays conducted.
Mendeliome v0.13642 COASY Ain Roesley changed review comment from: Green for both NBIA and PCH; to: Green for both NBIA and PCH

only 2 variants reported for PCH - a fs (c.1549_1550delAG) and c.1486-3C>G (Recurrent)
Mendeliome v0.13616 LIPC Zornitza Stark edited their review of gene: LIPC: Changed phenotypes: Hepatic lipase deficiency, MIM# 614025, Hyperlipidemia due to hepatic triglyceride lipase deficiency, MONDO:0013533
Mendeliome v0.13616 LIPC Zornitza Stark edited their review of gene: LIPC: Changed publications: 1671786, 12777476, 1883393, 23219720, 26423094, 22464213, 22798447
Mendeliome v0.13616 LIPC Zornitza Stark edited their review of gene: LIPC: Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.13616 LIPC Zornitza Stark reviewed gene: LIPC: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Hepatic lipase deficiency, MIM# 614025; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13587 LIPC Alison Yeung Marked gene: LIPC as ready
Mendeliome v0.13587 LIPC Alison Yeung Gene: lipc has been classified as Green List (High Evidence).
Mendeliome v0.13587 LIPC Alison Yeung Phenotypes for gene: LIPC were changed from to Hepatic lipase deficiency MIM#614025; Hyperlipidemia due to hepatic triglyceride lipase deficiency, MONDO:0013533
Mendeliome v0.13586 LIPC Alison Yeung Publications for gene: LIPC were set to
Mendeliome v0.13585 LIPC Alison Yeung Mode of inheritance for gene: LIPC was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.13469 APCDD1 Zornitza Stark Marked gene: APCDD1 as ready
Mendeliome v0.13469 APCDD1 Zornitza Stark Gene: apcdd1 has been classified as Green List (High Evidence).
Mendeliome v0.13469 APCDD1 Zornitza Stark Phenotypes for gene: APCDD1 were changed from to Hypotrichosis 1, MIM#605389
Mendeliome v0.13468 APCDD1 Zornitza Stark Publications for gene: APCDD1 were set to
Mendeliome v0.13467 APCDD1 Zornitza Stark Mode of inheritance for gene: APCDD1 was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.13466 APCDD1 Zornitza Stark reviewed gene: APCDD1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Hypotrichosis 1, MIM#605389; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.13432 APCDD1 Elena Savva reviewed gene: APCDD1: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID: 22512811; Phenotypes: Hypotrichosis 1 MIM#605389; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Mendeliome v0.13263 RSPH4A Belinda Chong changed review comment from: Radial spokes are regularly spaced along cilia, sperm, and flagella axonemes and have a multisubunit 'stalk' and 'head' that form a signal transduction scaffold between the central microtubule pair and dynein arms. RSPH4A is predicted to be a component of the radial spoke head based on homology with proteins in the biflagellate alga Chlamydomonas reinhardtii and other ciliates (Castleman et al., 2009; PMID19200523)

9 families with primary ciliary dyskinesia without situs inversus (Kott et al. 2013 (PMID:23993197), Castleman et al., 2009 (PMID19200523) and Daniels et al. 2013; (PMID:23798057)):
- In affected members of 4 Pakistani families with CILD11, Castleman et al. (2009) identified a homozygous mutation in the RSPH4A gene.
- In affected members of a family of northern European descent with CILD11, Castleman et al. (2009) identified compound heterozygosity for 2 mutations in the RSPH4A gene
- Kott et al. (2013) identified pathogenic mutations in the RSPH4A gene in 7 (14%) of 48 families with a specific CILD.

Common founder mutation:
- Daniels et al. (2013) identified a common founder mutation in the RSPH4A gene in 9 patients with CILD11, all of whom had Puerto Rican ancestry.

Multiple individuals in ClinVar with primary ciliary dyskinesia; to: Radial spokes are regularly spaced along cilia, sperm, and flagella axonemes and have a multisubunit 'stalk' and 'head' that form a signal transduction scaffold between the central microtubule pair and dynein arms. RSPH4A is predicted to be a component of the radial spoke head based on homology with proteins in the biflagellate alga Chlamydomonas reinhardtii and other ciliates (Castleman et al., 2009; PMID19200523)

9 families with primary ciliary dyskinesia without situs inversus (Kott et al. 2013 (PMID:23993197), Castleman et al., 2009 (PMID19200523) and Daniels et al. 2013; (PMID:23798057)):
- In affected members of 4 Pakistani families with CILD11, Castleman et al. (2009) identified a homozygous mutation in the RSPH4A gene.
- In affected members of a family of northern European descent with CILD11, Castleman et al. (2009) identified compound heterozygosity for 2 mutations in the RSPH4A gene
- Kott et al. (2013) identified pathogenic mutations in the RSPH4A gene in 7 (14%) of 48 families with a specific CILD.

Common founder mutation:
- Daniels et al. (2013) identified a common founder mutation in the RSPH4A gene in 9 patients with CILD11, all of whom had Puerto Rican ancestry.

Multiple individuals in ClinVar with primary ciliary dyskinesia

PMID: 25789548; Frommer 2015: 8 PCD families reported, only 4 different variants identified. Functional studies performed.

PMID: 22448264; Ziętkiewicz 2012: 4 additional families/variants reported.
Mendeliome v0.13251 PMPCA Zornitza Stark Marked gene: PMPCA as ready
Mendeliome v0.13251 PMPCA Zornitza Stark Gene: pmpca has been classified as Green List (High Evidence).
Mendeliome v0.13251 PMPCA Zornitza Stark Phenotypes for gene: PMPCA were changed from to Spinocerebellar ataxia, autosomal recessive 2, MIM# 213200
Mendeliome v0.13250 PMPCA Zornitza Stark Publications for gene: PMPCA were set to
Mendeliome v0.13249 PMPCA Zornitza Stark Mode of inheritance for gene: PMPCA was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13248 PMPCA Zornitza Stark reviewed gene: PMPCA: Rating: GREEN; Mode of pathogenicity: None; Publications: 25808372, 26657514, 33272776, 30617178; Phenotypes: Spinocerebellar ataxia, autosomal recessive 2, MIM# 213200; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.13248 PMPCB Zornitza Stark Marked gene: PMPCB as ready
Mendeliome v0.13248 PMPCB Zornitza Stark Gene: pmpcb has been classified as Green List (High Evidence).
Mendeliome v0.13248 PMPCB Zornitza Stark Phenotypes for gene: PMPCB were changed from to Multiple mitochondrial dysfunctions syndrome 6, MIM# 617954
Mendeliome v0.13247 PMPCB Zornitza Stark Publications for gene: PMPCB were set to
Mendeliome v0.13246 PMPCB Zornitza Stark Mode of inheritance for gene: PMPCB was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12887 PCK2 Zornitza Stark Marked gene: PCK2 as ready
Mendeliome v0.12887 PCK2 Zornitza Stark Gene: pck2 has been classified as Red List (Low Evidence).
Mendeliome v0.12887 PCK2 Zornitza Stark Phenotypes for gene: PCK2 were changed from to PEPCK deficiency, mitochondrial - MIM#261650
Mendeliome v0.12886 PCK2 Zornitza Stark Mode of inheritance for gene: PCK2 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12885 PCK2 Zornitza Stark Classified gene: PCK2 as Red List (low evidence)
Mendeliome v0.12885 PCK2 Zornitza Stark Gene: pck2 has been classified as Red List (Low Evidence).
Mendeliome v0.12883 PCCB Zornitza Stark Marked gene: PCCB as ready
Mendeliome v0.12883 PCCB Zornitza Stark Gene: pccb has been classified as Green List (High Evidence).
Mendeliome v0.12883 PCCB Zornitza Stark Phenotypes for gene: PCCB were changed from to Propionicacidaemia - MIM#606054
Mendeliome v0.12882 PCCB Zornitza Stark Publications for gene: PCCB were set to
Mendeliome v0.12881 PCCB Zornitza Stark Mode of inheritance for gene: PCCB was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12880 PCCA Zornitza Stark Marked gene: PCCA as ready
Mendeliome v0.12880 PCCA Zornitza Stark Gene: pcca has been classified as Green List (High Evidence).
Mendeliome v0.12880 PCCA Zornitza Stark Phenotypes for gene: PCCA were changed from to Propionicacidaemia - MIM#606054
Mendeliome v0.12879 PCCA Zornitza Stark Publications for gene: PCCA were set to
Mendeliome v0.12878 PCCA Zornitza Stark Mode of inheritance for gene: PCCA was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12874 PC Zornitza Stark Marked gene: PC as ready
Mendeliome v0.12874 PC Zornitza Stark Gene: pc has been classified as Green List (High Evidence).
Mendeliome v0.12874 PC Zornitza Stark Phenotypes for gene: PC were changed from to Pyruvate carboxylase deficiency - MIM#266150
Mendeliome v0.12873 PC Zornitza Stark Publications for gene: PC were set to
Mendeliome v0.12872 PC Zornitza Stark Mode of inheritance for gene: PC was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12855 PDCD1 Krithika Murali changed review comment from: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.; to: No OMIM gene disease association.

1 individual from a consanguineous family reported with PDCD1 deficiency.

PMID: 34183838 (Nat Medicine 2021) - proband is the son of consanguineous Turkish parents. He was diagnosed with type 1 diabetes (T1D), hypothyroidism, and juvenile idiopathic arthritis (JIA) at the age of three years. He developed abdominal TB age 10 and died from pulmonary alveolar haemorrhage age 11. WES identified homozygous intragenic PDCD1 gene duplication (c.105dupC p.T36Hfs*70). Absent from population databases and unaffected parents confirmed to be heterozygous. Supportive in vitro studies showing absent expression or function of PD-1 protein. Proband's older brother died at the age of 3 from unexplained pneumonitis and had a history of T1DM and juvenile idiopathic arthritis.
Mendeliome v0.12855 PCK2 Krithika Murali reviewed gene: PCK2: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: PEPCK deficiency, mitochondrial - MIM#261650; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12853 PCCB Krithika Murali reviewed gene: PCCB: Rating: GREEN; Mode of pathogenicity: None; Publications: 7386459, 9683601, 10502773; Phenotypes: Propionicacidemia - MIM#606054; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12851 PCCA Krithika Murali reviewed gene: PCCA: Rating: GREEN; Mode of pathogenicity: None; Publications: 17966092, 10101253, 9887338; Phenotypes: Propionicacidemia - MIM#606054; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12848 PC Krithika Murali reviewed gene: PC: Rating: GREEN; Mode of pathogenicity: None; Publications: 9585612, 12112657; Phenotypes: Pyruvate carboxylase deficiency - MIM#266150; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12818 TRPC6 Zornitza Stark Marked gene: TRPC6 as ready
Mendeliome v0.12818 TRPC6 Zornitza Stark Gene: trpc6 has been classified as Green List (High Evidence).
Mendeliome v0.12818 TRPC6 Zornitza Stark Phenotypes for gene: TRPC6 were changed from to Glomerulosclerosis, focal segmental, 2, MIM# 603965
Mendeliome v0.12817 TRPC6 Zornitza Stark Publications for gene: TRPC6 were set to
Mendeliome v0.12816 TRPC6 Zornitza Stark Mode of inheritance for gene: TRPC6 was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12815 TRPC6 Zornitza Stark reviewed gene: TRPC6: Rating: GREEN; Mode of pathogenicity: None; Publications: 15879175, 15924139, 34387384, 33918778, 32509715; Phenotypes: Glomerulosclerosis, focal segmental, 2, MIM# 603965; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12815 TRAPPC2 Zornitza Stark Marked gene: TRAPPC2 as ready
Mendeliome v0.12815 TRAPPC2 Zornitza Stark Gene: trappc2 has been classified as Green List (High Evidence).
Mendeliome v0.12815 TRAPPC2 Zornitza Stark Phenotypes for gene: TRAPPC2 were changed from to Spondyloepiphyseal dysplasia tarda, MIM# 313400
Mendeliome v0.12814 TRAPPC2 Zornitza Stark Publications for gene: TRAPPC2 were set to
Mendeliome v0.12813 TRAPPC2 Zornitza Stark Mode of inheritance for gene: TRAPPC2 was changed from Unknown to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.12812 TRAPPC2 Zornitza Stark reviewed gene: TRAPPC2: Rating: GREEN; Mode of pathogenicity: None; Publications: 10431248, 14755465, 33726005, 20301324, 32953644; Phenotypes: Spondyloepiphyseal dysplasia tarda, MIM# 313400; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.12812 TRAPPC12 Zornitza Stark Marked gene: TRAPPC12 as ready
Mendeliome v0.12812 TRAPPC12 Zornitza Stark Gene: trappc12 has been classified as Green List (High Evidence).
Mendeliome v0.12812 TRAPPC11 Zornitza Stark Marked gene: TRAPPC11 as ready
Mendeliome v0.12812 TRAPPC11 Zornitza Stark Gene: trappc11 has been classified as Green List (High Evidence).
Mendeliome v0.12812 TRAPPC11 Zornitza Stark Phenotypes for gene: TRAPPC11 were changed from to Muscular dystrophy, limb-girdle, autosomal recessive 18, MIM# 615356
Mendeliome v0.12811 TRAPPC11 Zornitza Stark Publications for gene: TRAPPC11 were set to
Mendeliome v0.12810 TRAPPC11 Zornitza Stark Mode of inheritance for gene: TRAPPC11 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12809 TRAPPC11 Zornitza Stark reviewed gene: TRAPPC11: Rating: GREEN; Mode of pathogenicity: None; Publications: 23830518, 26322222, 29855340, 30105108; Phenotypes: Muscular dystrophy, limb-girdle, autosomal recessive 18, MIM# 615356; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12738 PIGA Zornitza Stark changed review comment from: PIGA 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.; to: PMID 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.
Mendeliome v0.12737 PIGA Zornitza Stark edited their review of gene: PIGA: Added comment: PIGA 34875027: variants in PIGA causing a neurodevelopment disorder and a juvenile form of hereditary hemochromatosis reported in > three unrelated patients. All patients had increased serum iron, ferritin and transferrin saturation levels, high ALP and low hepcidin. All patients had generalised seizures and intellectual disability. A subpopulation of patient blood cells showed a slight reduction of GPI-anchored proteins, suggesting that the mutations were hypomorphic and retained some residual activity. CRISPR/Cas12a-mediated knockdown of PIGA in Hep3B liver cells eliminated the cell surface expression of GPI-anchored proteins CD59 and hemojuvelin (HJV; 608374), as well as caused decreased expression of hepcidin (606464) compared to controls. These hypomorphic alleles could explain the milder neurologic phenotype, which allowed for sufficiently long survival for the iron overload phenotype to manifest.; Changed publications: 22305531, 24357517, 24706016, 26545172, 33333793, 32694024, 34875027; Changed phenotypes: Multiple congenital anomalies-hypotonia-seizures syndrome 2, MIM# 300868, MONDO:0010466, Neurodevelopmental disorder with epilepsy and haemochromatosis, MIM# 301072
Mendeliome v0.12731 TRAPPC10 Zornitza Stark Marked gene: TRAPPC10 as ready
Mendeliome v0.12731 TRAPPC10 Zornitza Stark Gene: trappc10 has been classified as Green List (High Evidence).
Mendeliome v0.12731 TRAPPC10 Zornitza Stark Classified gene: TRAPPC10 as Green List (high evidence)
Mendeliome v0.12731 TRAPPC10 Zornitza Stark Gene: trappc10 has been classified as Green List (High Evidence).
Mendeliome v0.12728 TRAPPC10 Naomi Baker gene: TRAPPC10 was added
gene: TRAPPC10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRAPPC10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC10 were set to PMID: 35298461; 30167849
Phenotypes for gene: TRAPPC10 were set to neurodevelopmental disorder (MONDO:0700092), TRAPPC10-related
Review for gene: TRAPPC10 was set to GREEN
Added comment: PMID: 35298461 – two Pakistani families reported with homozygous variants. Family 1 has frameshift variant in 8 affected individual and family 2 has missense variant in 2 affected individuals. Patients present with microcephaly, short stature, hypotonia, severe ID and behavioural abnormalities. Seizures also reported in 4/10 individuals. Paper also reported brain abnormalities in null mouse model and other functional in transfected cell lines.

PMID: 30167849 – initial report of family 2 above.
Sources: Literature
Mendeliome v0.12714 TNNI1 Krithika Murali gene: TNNI1 was added
gene: TNNI1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TNNI1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TNNI1 were set to 34934811
Phenotypes for gene: TNNI1 were set to arthrogryposis; joint contractures
Review for gene: TNNI1 was set to AMBER
Added comment: No OMIM gene disease association reported

PMID 34934811 Nishimori et al report 2 individuals from a Japanese family with joint contractures, elevated CK and a novel heterozygous TNNI1 variant.

The proband was born with clasped thumbs (gestational age not stated) requiring surgical correction at 5 months of age. At age 14 was diagnosed with contractures of the neck, trunk, hip and knee with elevated serum CK (1689 IU/L). No muscle weakness noted. Muscle biopsy showed moth-eaten appearance of type I fibres and electron microscopy showed type 1 fibre Z disk streaming.

Trio exome sequencing identified a paternally heterozygous nonsense TNNI1 variant (c.523A>T p.K175*). The proband's father and paternal grandfather (not genotyped) also have a history of joint contractures with elevated CK.

The affected amino acid residue is in the tropomyosin binding site near the C-terminus and is highly conserved. The variant is absent from gnomAD. rt-PCR products of mRNA from the patient's muscle biopsy showed presence of both mutated and normal transcripts.
Sources: Literature
Mendeliome v0.12659 SOX10 Zornitza Stark Phenotypes for gene: SOX10 were changed from to Kallman syndrome; PCWH syndrome (MIM#609136); Waardenburg syndrome, type 2E, with or without neurologic involvement (MIM#611584); Waardenburg syndrome, type 4C (MIM#613266)
Mendeliome v0.12656 SOX10 Zornitza Stark reviewed gene: SOX10: Rating: GREEN; Mode of pathogenicity: None; Publications: 23643381, 24845202; Phenotypes: Kallman syndrome, PCWH syndrome (MIM#609136), Waardenburg syndrome, type 2E, with or without neurologic involvement (MIM#611584), Waardenburg syndrome, type 4C (MIM#613266); Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.12387 ARPC4 Bryony Thompson Publications for gene: ARPC4 were set to DOI:https://doi.org/10.1016/j.xhgg.2021.100072
Mendeliome v0.12386 ARPC4 Bryony Thompson edited their review of gene: ARPC4: Changed publications: 35047857; Set current diagnostic: yes
Mendeliome v0.12381 DVL2 Bryony Thompson gene: DVL2 was added
gene: DVL2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DVL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DVL2 were set to 35047859; 33599851; 30521570
Phenotypes for gene: DVL2 were set to Robinow syndrome MONDO:0019978
Review for gene: DVL2 was set to AMBER
Added comment: A single case with Robinow syndrome identified with a de novo frameshift variant in the last exon of the gene (c.2105dupC, p.Pro703Serfs*103). Also, a canine DVL2 frameshift variant has been associated with a Robinow-like syndrome in dogs, contributing to the brachycephalic phenotype and caudal vertebral anomalies.
Sources: Literature
Mendeliome v0.11897 NPPC Zornitza Stark Marked gene: NPPC as ready
Mendeliome v0.11897 NPPC Zornitza Stark Gene: nppc has been classified as Red List (Low Evidence).
Mendeliome v0.11897 NPPC Zornitza Stark Phenotypes for gene: NPPC were changed from to short stature and non-specific skeletal anomalies - MONDO#0014551
Mendeliome v0.11896 NPPC Zornitza Stark Publications for gene: NPPC were set to
Mendeliome v0.11895 NPPC Zornitza Stark Mode of inheritance for gene: NPPC was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.11894 NPPC Zornitza Stark Classified gene: NPPC as Red List (low evidence)
Mendeliome v0.11894 NPPC Zornitza Stark Gene: nppc has been classified as Red List (Low Evidence).
Mendeliome v0.11860 NPPC Krithika Murali reviewed gene: NPPC: Rating: RED; Mode of pathogenicity: None; Publications: 28661490, 32528716; Phenotypes: short stature and non-specific skeletal anomalies - MONDO#0014551; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.11134 OPCML Zornitza Stark Marked gene: OPCML as ready
Mendeliome v0.11134 OPCML Zornitza Stark Gene: opcml has been classified as Red List (Low Evidence).
Mendeliome v0.11134 OPCML Zornitza Stark Phenotypes for gene: OPCML were changed from to Ovarian cancer, somatic, MIM#167000
Mendeliome v0.11133 OPCML Zornitza Stark Classified gene: OPCML as Red List (low evidence)
Mendeliome v0.11133 OPCML Zornitza Stark Gene: opcml has been classified as Red List (Low Evidence).
Mendeliome v0.11132 OPCML Naomi Baker reviewed gene: OPCML: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: Ovarian cancer, somatic, MIM#167000; Mode of inheritance: Other
Mendeliome v0.11071 CHKA Konstantinos Varvagiannis gene: CHKA was added
gene: CHKA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CHKA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CHKA were set to 35202461
Phenotypes for gene: CHKA were set to Abnormal muscle tone; Global developmental delay; Intellectual disability; Seizures; Microcephaly; Abnormality of movement; Abnormality of nervous system morphology; Short stature
Penetrance for gene: CHKA were set to Complete
Review for gene: CHKA was set to GREEN
Added comment: Klöckner (2022 - PMID: 35202461) describe the phenotype of 6 individuals (from 5 unrelated families) harboring biallelic CHKA variants.

Shared features incl. abnormal muscle tone(6/6 - hypertonia or hypotonia, 3/6 each), DD/ID (6/6,severe in 4, severe/profound in 2), epilepsy (6/6 - onset: infancy - 3y2m | epileptic spasms or GS at onset), microcephaly (6/6), movement disorders (3/6 - incl. dyskinesia, rigidity, choreoatetotic movements). 2/5 individuals exhibited MRI abnormalities, notably hypomyelination. Short stature was observed in 4/6.

Eventual previous genetic testing was not discussed.

Exome sequencing (quattro ES for 2 sibs, trio ES for 1 individual, singleton for 3 probands) revealed biallelic CHKA variants in all affected individuals. Sanger sequencing was performed for confirmation and segregation studies.

Other variants (in suppl.) were not deemed to be causative for the neurodevelopmental phenotype.

3 different missense, 1 start-loss and 1 truncating variant were identified, namely (NM_0012772.2):
- c.421C>T/p.(Arg141Trp) [3 hmz subjects from 2 consanguineous families],
- c.580C>T/p.Pro194Ser [1 hmz individual born to consanguineous parents],
- c.2T>C/p.(Met1?) [1 hmz individual born to related parents],
- c.14dup/p.(Cys6Leufs*19) in trans with c.1021T>C/p.(Phe341Leu) in 1 individual.

CHKA encodes choline kinase alpha, an enzyme catalyzing the first step of phospholipid synthesis in the Kennedy pathway. The pathway is involved in de novo synthesis of glycerophospholipids, phosphatidylcholine and phosphatidylethanolamine being the most abundant in eukaryotic membranes.

CHKA with its paralog (CHKB) phosphorylates either choline or ethanolamine to phosphocholine or phosphoethanolamine respectively with conversion of ATP to ADP.

As the authors comment, biallelic pathogenic variants in CHKB cause a NDD with muscular dystrophy, hypotonia, ID, microcephaly and structural mitochondrial anomalies (MIM 602541). [Prominent mitochondrial patterning was observed in a single muscle biopsy available from an individual with biallelic CHKA variants].

Other disorders of the Kennedy pathway (due to biallelic PCYT2, SELENOI, PCYT1A variants) present with overlapping features incl. variable DD/ID (no-severe), microcephaly, seizures, visual impairment etc.

CHKA variants were either absent or observed once in gnomAD, affected highly conserved AAs with multiple in silico predictions in favor of a deleterious effect.

In silico modeling suggests structural effects for several of the missense variants (Arg141Trp, Pro194Ser presumably affect ADP binding, Phe341 lying close to the binding site of phosphocholine).

Each of the missense variants was expressed in yeast cells and W. Blot suggested expression at the expected molecular weight at comparative levels. The 3 aforementioned variants exhibited reduced catalytic activity (20%, 15%, 50% respectively).

NMD is thought to underly the deleterious effect of the frameshift one (not studied).

The start-loss variant is expected to result in significantly impaired expression and protein function as eventual utilization of the next possible start codon - occurring at position 123 - would remove 26% of the protein.

Chka(-/-) is embryonically lethal in mice, suggesting that complete loss is not compatible with life. Reduction of choline kinase activity by 30% in heterozygous mice did not appear to result in behavioral abnormalities although this was not studied in detail (PMID cited: 18029352). Finally, screening of 1566 mouse lines identified 198 genes whose disruption yields neuroanatomical phenotypes, Chka(+/-) mice being among these (PMID cited: 31371714).

There is no associated phenotype in OMIM, Gene2Phenotype or SysID.

Overall this gene can be considered for inclusion in the ID and epilepsy panes with green or amber rating (>3 individuals, >3 variants, variant studies, overlapping phenotype of disorders belonging to the same pathway, etc). Consider also inclusion in the microcephaly panel (where available this seemed to be of postnatal onset).
Sources: Literature
Mendeliome v0.10836 TMEM53 Lucy Spencer gene: TMEM53 was added
gene: TMEM53 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TMEM53 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TMEM53 were set to PMID: 33824347
Phenotypes for gene: TMEM53 were set to Sclerosing bone disorder, macrocephaly, impaired vision, short stature
Review for gene: TMEM53 was set to GREEN
Added comment: PMID: 33824347- Previously unknown type of sclerosing bone disorder in 4 independent families, bi-allelic LOF variants in TMEM53. 5 individuals from 4 families, all have proportional or short limbed stature, not identifiable at birth. Head deformities (macrocephaly, dolichocephaly, prominent forehead), epicanthic folds, thick vermilion of upper and lower lips. Vision diminished after early childhood due to optic nerve compression.

3 of 4 families confirmed consanguineous, and all affected members from all 4 families have homozygous variants inherited from heterozygous parents. 3 families have the same splicing variant proven to cause exon 2 skipping and an NMD frameshift by RT-PCR. The other family has a an NMD frameshift variant. So 4 families but only 2 variants.
Sources: Literature
Mendeliome v0.10638 ANAPC7 Zornitza Stark Marked gene: ANAPC7 as ready
Mendeliome v0.10638 ANAPC7 Zornitza Stark Gene: anapc7 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.10638 ANAPC7 Zornitza Stark Classified gene: ANAPC7 as Amber List (moderate evidence)
Mendeliome v0.10638 ANAPC7 Zornitza Stark Gene: anapc7 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.10637 ANAPC7 Zornitza Stark gene: ANAPC7 was added
gene: ANAPC7 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANAPC7 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ANAPC7 were set to 34942119
Phenotypes for gene: ANAPC7 were set to Ferguson-Bonni neurodevelopmental syndrome, MIM# 619699
Review for gene: ANAPC7 was set to AMBER
Added comment: 11 individuals of Amish heritage reported homozygous for an intragenic deletion. Clinical features included ID, hypotonia, deafness in 5, relatively small head size (but microcephaly only in 1), and occasional congenital anomalies.

Supportive mouse model.

Amber rating in light of this being a founder variant.
Sources: Literature
Mendeliome v0.10629 GPC3 Zornitza Stark Marked gene: GPC3 as ready
Mendeliome v0.10629 GPC3 Zornitza Stark Gene: gpc3 has been classified as Green List (High Evidence).
Mendeliome v0.10629 GPC3 Zornitza Stark Phenotypes for gene: GPC3 were changed from to Simpson-Golabi-Behmel syndrome, type 1, MIM# 312870
Mendeliome v0.10628 GPC3 Zornitza Stark Mode of inheritance for gene: GPC3 was changed from Unknown to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.10627 GPC3 Zornitza Stark reviewed gene: GPC3: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Simpson-Golabi-Behmel syndrome, type 1, MIM# 312870; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.10209 Zornitza Stark removed gene:NPC1 from the panel
Mendeliome v0.10204 NPC1 Daniel Flanagan gene: NPC1 was added
gene: NPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NPC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NPC1 were set to 12408188; 9211849
Phenotypes for gene: NPC1 were set to Niemann-Pick disease, type C1/ type D (MIM#257220)
Review for gene: NPC1 was set to GREEN
Added comment: Biallelic NPC1 variants cause Niemann-Pick disease, type C1/ type D. Prenatal manifestation: hydrops fetalis.
Sources: Literature
Mendeliome v0.10044 ECM1 Zornitza Stark changed review comment from: PMID: 11929856 - Hamada et al 2002 - looked at 6 different unrelated consanguineous families (from Saudi Arabia, Kuwait, Pakistan, The Netherlands, UK, and a group of South African families with a probable common ancestor) with a clinical diagnosis of Lipoid proteinosis (LP)/Urbach–Wiethe disease. They performed a genome-wide linkage analysis and identified a region and then looked at the expression of candidate genes in fibroblasts from patients compared to controls. ECM1 was found to have lower expression levels. 6 homozygous deletion variants were identified in the patients. In one family they established that the parents were heterozygous for the variant.

PMID: 28720532 - Afifi et al 2017 - studied 12 patients from 10 unrelated consanguineous Egyptian families with a clinical diagnosis of lipoid proteinosis. The patients reported progressive hoarseness of voice and easily damaged skin by minor trauma or friction. Homozygous ECM1 variants were detected in affected members in all families: 1 family had a missense variant, 5 families had splice site variants and 4 families had indels predicted to cause frameshifts. Parents were found to be heterozygous for the variants.

PMID: 33159951 - Zhu et al 2021 - a novel homozygous three-nucleotide duplication (c.506_508dupCTG) in ECM in two siblings affected with LP from a consanguineous Chinese family.; to: Lipoid proteinosis of Urbach and Wiethe is a rare autosomal recessive disorder typified by generalized thickening of skin, mucosae, and certain viscera. Classic features include beaded eyelid papules and laryngeal infiltration leading to hoarseness. The disorder is clinically heterogeneous, with affected individuals displaying differing degrees of skin scarring and infiltration, variable signs of hoarseness and respiratory distress, and in some cases neurologic abnormalities such as temporal lobe epilepsy. Histologically, there is widespread deposition of hyaline (glycoprotein) material and disruption/reduplication of basement membrane

PMID: 11929856 - Hamada et al 2002 - looked at 6 different unrelated consanguineous families (from Saudi Arabia, Kuwait, Pakistan, The Netherlands, UK, and a group of South African families with a probable common ancestor) with a clinical diagnosis of Lipoid proteinosis (LP)/Urbach–Wiethe disease. They performed a genome-wide linkage analysis and identified a region and then looked at the expression of candidate genes in fibroblasts from patients compared to controls. ECM1 was found to have lower expression levels. 6 homozygous deletion variants were identified in the patients. In one family they established that the parents were heterozygous for the variant.

PMID: 28720532 - Afifi et al 2017 - studied 12 patients from 10 unrelated consanguineous Egyptian families with a clinical diagnosis of lipoid proteinosis. The patients reported progressive hoarseness of voice and easily damaged skin by minor trauma or friction. Homozygous ECM1 variants were detected in affected members in all families: 1 family had a missense variant, 5 families had splice site variants and 4 families had indels predicted to cause frameshifts. Parents were found to be heterozygous for the variants.

PMID: 33159951 - Zhu et al 2021 - a novel homozygous three-nucleotide duplication (c.506_508dupCTG) in ECM in two siblings affected with LP from a consanguineous Chinese family.
Mendeliome v0.10014 ARPC4 Bryony Thompson Marked gene: ARPC4 as ready
Mendeliome v0.10014 ARPC4 Bryony Thompson Gene: arpc4 has been classified as Green List (High Evidence).
Mendeliome v0.10014 ARPC4 Bryony Thompson Classified gene: ARPC4 as Green List (high evidence)
Mendeliome v0.10014 ARPC4 Bryony Thompson Gene: arpc4 has been classified as Green List (High Evidence).
Mendeliome v0.10013 ARPC4 Bryony Thompson gene: ARPC4 was added
gene: ARPC4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ARPC4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: ARPC4 were set to DOI:https://doi.org/10.1016/j.xhgg.2021.100072
Phenotypes for gene: ARPC4 were set to Microcephaly; mild motor delays; significant speech impairment
Review for gene: ARPC4 was set to GREEN
Added comment: 7 affected individuals from 6 families (gonadal mosaicism was confirmed in the mother of the 2 affected siblings) with a recurrent missense variant (NM_005718.4:c.472C>T; p.R158C). The variant was associated with a decreased amount of F-actin in cells from two affected individuals.
Sources: Literature
Mendeliome v0.9720 TPCN2 Zornitza Stark Marked gene: TPCN2 as ready
Mendeliome v0.9720 TPCN2 Zornitza Stark Gene: tpcn2 has been classified as Red List (Low Evidence).
Mendeliome v0.9720 TPCN2 Zornitza Stark Phenotypes for gene: TPCN2 were changed from to [Skin/hair/eye pigmentation 10, blond/brown hair] MIM#612267
Mendeliome v0.9719 TPCN2 Zornitza Stark Publications for gene: TPCN2 were set to
Mendeliome v0.9718 TPCN2 Zornitza Stark Classified gene: TPCN2 as Red List (low evidence)
Mendeliome v0.9718 TPCN2 Zornitza Stark Gene: tpcn2 has been classified as Red List (Low Evidence).
Mendeliome v0.9713 TPCN2 Paul De Fazio reviewed gene: TPCN2: Rating: RED; Mode of pathogenicity: None; Publications: 20197744, 26918892; Phenotypes: [Skin/hair/eye pigmentation 10, blond/brown hair] MIM#612267; Mode of inheritance: Unknown; Current diagnostic: yes
Mendeliome v0.9610 RNPC3 Zornitza Stark Phenotypes for gene: RNPC3 were changed from Growth hormone deficiency to Growth hormone deficiency; Intellectual disability
Mendeliome v0.9609 RNPC3 Zornitza Stark Publications for gene: RNPC3 were set to 29866761; 32462814
Mendeliome v0.9608 RNPC3 Zornitza Stark Classified gene: RNPC3 as Green List (high evidence)
Mendeliome v0.9608 RNPC3 Zornitza Stark Gene: rnpc3 has been classified as Green List (High Evidence).
Mendeliome v0.9607 RNPC3 Zornitza Stark edited their review of gene: RNPC3: Added comment: PMID 33650182: third individual reported with growth failure and ID.; Changed rating: GREEN; Changed publications: 29866761, 32462814, 33650182; Changed phenotypes: Growth hormone deficiency, Intellectual disability
Mendeliome v0.9559 PCSK1 Zornitza Stark Marked gene: PCSK1 as ready
Mendeliome v0.9559 PCSK1 Zornitza Stark Gene: pcsk1 has been classified as Green List (High Evidence).
Mendeliome v0.9559 PCSK1 Zornitza Stark Phenotypes for gene: PCSK1 were changed from to Obesity with impaired prohormone processing MIM#600955
Mendeliome v0.9558 PCSK1 Zornitza Stark Publications for gene: PCSK1 were set to
Mendeliome v0.9557 PCSK1 Zornitza Stark Mode of inheritance for gene: PCSK1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9556 PCSK1 Zornitza Stark reviewed gene: PCSK1: Rating: GREEN; Mode of pathogenicity: None; Publications: 30383237; Phenotypes: Obesity with impaired prohormone processing MIM#600955; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.9437 SFTPC Zornitza Stark Marked gene: SFTPC as ready
Mendeliome v0.9437 SFTPC Zornitza Stark Gene: sftpc has been classified as Green List (High Evidence).
Mendeliome v0.9437 SFTPC Zornitza Stark Phenotypes for gene: SFTPC were changed from to Surfactant metabolism dysfunction, pulmonary, 2, MIM# 610913
Mendeliome v0.9436 SFTPC Zornitza Stark Publications for gene: SFTPC were set to
Mendeliome v0.9435 SFTPC Zornitza Stark Mode of inheritance for gene: SFTPC was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.9434 SFTPC Zornitza Stark reviewed gene: SFTPC: Rating: GREEN; Mode of pathogenicity: None; Publications: 11207353, 11991887, 11893657, 15557112, 19443464; Phenotypes: Surfactant metabolism dysfunction, pulmonary, 2, MIM# 610913; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.9361 GYPC Zornitza Stark Marked gene: GYPC as ready
Mendeliome v0.9361 GYPC Zornitza Stark Gene: gypc has been classified as Red List (Low Evidence).
Mendeliome v0.9361 GYPC Zornitza Stark Phenotypes for gene: GYPC were changed from to [Blood group, Gerbich] MIM#616089
Mendeliome v0.9360 GYPC Zornitza Stark Publications for gene: GYPC were set to
Mendeliome v0.9359 GYPC Zornitza Stark Mode of inheritance for gene: GYPC was changed from Unknown to Other
Mendeliome v0.9358 GYPC Zornitza Stark Classified gene: GYPC as Red List (low evidence)
Mendeliome v0.9358 GYPC Zornitza Stark Gene: gypc has been classified as Red List (Low Evidence).
Mendeliome v0.9355 GYPC Paul De Fazio reviewed gene: GYPC: Rating: RED; Mode of pathogenicity: None; Publications: 29469208; Phenotypes: [Blood group, Gerbich] MIM#616089; Mode of inheritance: Other; Current diagnostic: yes
Mendeliome v0.9319 CFAP221 Zornitza Stark gene: CFAP221 was added
gene: CFAP221 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CFAP221 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CFAP221 were set to 31636325
Phenotypes for gene: CFAP221 were set to Primary ciliary dyskinesia
Review for gene: CFAP221 was set to RED
Added comment: WES in 1 family with 3 siblings with clinical symptoms of PCD identified compound heterozygous loss-of-function variants in CFAP221, which segregated with disease. No functional studies. Nasal epithelial cells from 1 of the subjects demonstrated slightly reduced beat frequency, however, waveform analysis revealed that the CFAP221 defective cilia beat in an aberrant circular pattern. A candidate gene in cases where PCD is suspected but cilia structure and beat frequency appear normal.
Sources: Literature
Mendeliome v0.8990 OPDM2 Bryony Thompson STR: OPDM2 was added
STR: OPDM2 was added to Mendeliome. Sources: Literature
Mode of inheritance for STR: OPDM2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for STR: OPDM2 were set to 32413282; 33374016
Phenotypes for STR: OPDM2 were set to Oculopharyngodistal myopathy 2 MIM#618940
Review for STR: OPDM2 was set to GREEN
STR: OPDM2 was marked as clinically relevant
Added comment: NM_005716.4:c.-211GGC[X]
>15 Chinese families/probands with a heterozygous trinucleotide repeat expansion (CGG(n)) in 5'UTR exon 1 of the GIPC1 gene. The expansion was found by a combination of linkage analysis, whole-exome sequencing, long-range sequencing, and PCR analysis, and segregated with the disorder in the family. Repeat lengths in the patients ranged from 70 to 138. Normal repeat lengths ranged from 12 to 32.
Sources: Literature
Mendeliome v0.8989 GIPC1 Bryony Thompson Classified gene: GIPC1 as No list
Mendeliome v0.8989 GIPC1 Bryony Thompson Gene: gipc1 has been removed from the panel.
Mendeliome v0.8834 RNF220 Zornitza Stark gene: RNF220 was added
gene: RNF220 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNF220 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNF220 were set to 33964137; 10881263
Phenotypes for gene: RNF220 were set to Leukodystrophy; CNS hypomyelination; Ataxia; Intellectual disability; Sensorineural hearing impairment; Elevated hepatic transaminases; Hepatic fibrosis; Dilated cardiomyopathy; Spastic paraplegia; Dysarthria; Abnormality of the corpus callosum
Review for gene: RNF220 was set to GREEN
Added comment: Sferra et al (2021 - PMID: 33964137) provide extensive evidence that biallelic RNF220 mutations cause a disorder characterized by hypomyelinating leukodystrophy, ataxia (9/9 - onset 1-5y), borderline intellectual functioning (3/9) / intellectual disability (5/9 - in most cases mild), sensorineural deafness (9/9) with complete hearing loss in the first decade of life, hepatopathy (9/9) with associated periportal fibrosis, and dilated cardiomyopathy (9/9) which was fatal.

Other neurologic manifestations apart from ataxia incl. hyperreflexia (8/8), spastic paraplegia (9/9), dysarthria (9/9), peripheral neuropathy (4/9), seizures in one case (1/9). Upon brain MRI there was thin corpus callosum (9/9) or cerebellar atrophy in some (2/9).

The authors identified homozygosity for 2 recurrent missense RNF220 variants in affected members belonging to these 5 broad consanguineous pedigrees (7 families), namely NM_018150.4:c.1094G>A / p.Arg365Gly in 4 Roma families in the context of a shared haplotype (/founder effect) as well as c.1088G>A / p.Arg363Gly in a large pedigree from southern Italy initially reported by Leuzzi et al (2000 - PMID: 10881263).

Extensive segregation analyses were carried out including several affected and unaffected members.

RNF220 encodes ring finger protein 220, which functions as an E3 ubiquitin ligase. Previous studies have shown among others a role in modulation of Sonic hedgehog/GLI signaling and cerebellar development

Evidence for the role of RNF220 included relevant expression, localization within the cell, interaction partners (lamin B1, 20S proteasome), similarities with other laminopathies in terms of phenotype, etc :
*RNF220 has a relevant expression pattern in CNS (based on qRT-PCR analyses in human brain, cerebellum, cerebral cortex / mRNA levels in human fetal CNS with higher expression in cerebellum, spinal cord and cortex / previous GTEx data / protein levels in mouse CNS)
*The protein displays nuclear localization based on iPSC cells differentiated to motor neurons (also supported by data from the Human Protein Atlas). Transfection of COS-1 cells demonstrated localization primarily to the nucleus (as also previously demonstrated in HEK293T cells) in vesicle like structures with ASF2/SF2 colocalization suggesting enrichment in nuclear speckles. There was also partial co-distribution with the 20S proteasome. R363Q and R365Q additionally coalesced in the cytoplasm forming protein aggregates/inclusions.
*Immunofluorescence studies in patient fibroblasts also confirmed abnormal increase of the protein in the cytoplasm and increased fluorescence with the 20S proteasome.
*Proteomic identification of RNF220-interacting proteins in transfected HEK293T cells demonstrated enrichment for all members of the lamin protein family (incl . lamin B1, AC, B2).
*RNAi-mediated downregulation of RNF222 in Drosophila suggested altered subcellular localization and accumulation of the fly orthologue for human lamin B1.
*Immunoprecipitation of lamin B1 from the nuclear matrix of cerebellar cells suggested significant interaction of endogenous lamin B1 with RNF220, while transfection studies in HEK293T cells for wt/mt suggested reduced binding to endogenous lamin B1 for RNF220 mt compared to wt (more prominent for R365Q). RNF220 mutants also reduced ubiquitination of nuclear lamin B1 compared to wt.
*Patient fibroblasts immunostained with different nuclear envelope markers displayed abnormal nuclear shapes with multiple invaginations and lobulations, findings also observed in laminopathies.
Sources: Literature
Mendeliome v0.8703 VAV1 Zornitza Stark gene: VAV1 was added
gene: VAV1 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: VAV1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: VAV1 were set to 20638113; 23058036
Phenotypes for gene: VAV1 were set to Common variable immnodeficiency
Review for gene: VAV1 was set to RED
Added comment: Reduced VAV1 expression has been reported in multiple T-CVID cases, however only one large deletion (exon 2-27) has been reported in a single case in a publication from 2012. The CNV was detected using real-time qPCR, but was not confirmed by an orthogonal method.
Sources: Expert Review
Mendeliome v0.8606 VRK1 Zornitza Stark changed review comment from: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia.; to: Complex phenotype with mixed peripheral and central neurological features. Two families reported where PCH was prominent and accompanied by ataxia. At least three families also reported where peripheral neuropathy dominated the clinical picture without PCH/ataxia.

Further delineation of phenotype 2021:
PMID 34169149: expanding spectrum of neurologic disorders associated with VRK1. Two Hispanic individuals, one homozygous (R321C: VUS and LP/P in ClinVar) and one cHet (R321C+V236M, latter P and more recently VUS in ClinVar), with slowly progressive weakness and a clinical syndrome consistent with adult-onset spinal muscular atrophy WITHOUT pontocerebellar atrophy. No hom in gnomAD and both have been reported in cHet individuals with other features: R321C in association with adult-onset amyotrophic lateral sclerosis and V236M with rapidly progressive sensorimotor polyneuropathy and microcephaly. Authors suggest PMID 26583493 and 31837156 have similar reports. PMID 26583493 reports a 32yo Hispanic individual, cHet H119R+R321C, with early-onset amyotrophic lateral sclerosis, 5 years progressive weakness. PMID 31837156 reports two patients with adult-onset length-dependent motor neuropathy from unrelated consanguineous families of Moroccan Jewish descent, both hom for R387H.
Mendeliome v0.8570 PDCL3 Zornitza Stark gene: PDCL3 was added
gene: PDCL3 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: PDCL3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PDCL3 were set to 32621347
Phenotypes for gene: PDCL3 were set to Megacystis-microcolon
Review for gene: PDCL3 was set to AMBER
Added comment: Single publication (PMID 32621347): one family with two affected fetuses - one with megacystis and microcolon, and the other with megacystisis and bilateral diaphragmatic hernia (prune-belly phenotype). Compound het LOF variants in PDCL3 (one frameshift and one missense). Complete absence of PDLC3 expression demonstrated in one of the affected fetuses. No homozygous LOF PDCL3 variants in gnomAD. PCDL3 negatively modulates actin folding and is strongly expressed in smooth muscle of bladder and colon.
Sources: Expert Review
Mendeliome v0.8511 CAMK4 Zornitza Stark gene: CAMK4 was added
gene: CAMK4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: CAMK4 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: CAMK4 were set to 30262571; 33098801; 33211350
Phenotypes for gene: CAMK4 were set to Intellectual disability; Autism; Behavioral abnormality; Abnormality of movement; Dystonia; Ataxia; Chorea; Myoclonus
Review for gene: CAMK4 was set to GREEN
Added comment: 3 publications by Zech et al (2018, 2020 - PMIDs : 30262571, 33098801, 33211350) provide clinical details on 3 individuals, each harboring a private de novo CAMK4 variant.

Overlapping features included DD, ID, behavoral issues, autism and abnormal hyperkinetic movements. Dystonia and chorea in all 3 appeared 3-20 years after initial symptoms.

CAMK4 encodes Calcium/Calmodulin-dependent protein kinase IV, an important mediator of calcium-mediated activity and dynamics, particularly in the brain. It is involved in neuronal transmission, synaptic plasticity, and neuronal gene expression required for brain development and neuronal homeostasis (summary by OMIM based on Zech et al, 2018).

The 473 aa enzyme has a protein kinase domain (aa 46-300) and a C-terminal autoregulatory domain (aa 305-341) the latter comprising an autoinhibitory domain (AID / aa 305-321) and a calmodulin-binding domain (CBD / aa 322-341) [NP_001735.1 / NM_001744.4 - also used below].

Variants in all 3 subjects were identified following trio-WES and were in all cases protein-truncating, mapping to exon 10 or exon 10-intron 10 junction, expected to escape NMD and cause selective abrogation of the autoinhibitory domain (aa 305-321) leading overall to gain-of-function.

Variation databases include pLoF CAMK4 variants albeit in all cases usptream or downstream of this region (pLI of this gene in gnomAD: 0.51). Variants leading to selective abrogation of the autoregulatory domain have not been reported.

Extensive evidence for the GoF effect of the variant has been provided in the first publication. Several previous studies have demonstrated that abrogation of the AID domain leads to consitutive activation (details below).

Mouse models - though corresponding to homozygous loss of function - support a role for CAMKIV in cognitive and motor symptoms. Null mice display tremulous and ataxic movements, deficiencies in balance and sensorimotor performance associated with reduced number of Purkinje neurons (Ribar et al 2000, PMID: 11069976 - not reviewed). Wei et al (2002, PMID: 12006982 - not reviewed) provided evidence for alteration in hippocampal physiology and memory function.

Heterozygous mutations in other genes for calcium/calmodulin-dependent protein kinases (CAMKs) e.g. CAMK2A/CAMK2B (encoding subunits of CAMKII) have been reported in individuals with ID.

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The proband in the first publication (PMID: 30262571) was a male with DD, ID, behavioral difficulties (ASD, autoaggression, stereotypies) and hyperkinetic movement disorder (myoclonus, chorea, ataxia) with severe generalized dystonia (onset at the age of 13y). Brain MRI demonstrated cerebellar atrophy.

Extensive work-up incl. karyotyping, CMA, DYT-TOR1A, THAP1, GCH1, SCA1/2/3/6/7/8/12/17, Friedreich's ataxia and FMR1 analysis was negative.F

Trio WES identified a dn splice site variant (c.981+1G>A) in the last exon-intron junction. RT-PCR followed by gel electrophoresis and Sanger in fibroblasts from an affected and control subject revealed that the proband had - as predicted by the type/location of the variant - in equal amount 2 cDNA products, a normal as well as a truncated one.

Sequencing of the shortest revealed utilization of a cryptic donor splice site upstream of the mutated donor leading to a 77bp out-of-frame deletion and introduction of a premature stop codon in the last codon (p.Lys303Serfs*28). Western blot in fibroblast cell lines revealed 2 bands corresponding to the normal protein product as well as to the p.Lys303Serfs*28 although expression of the latter was lower than that of the full length protein.

Several previous studies have shown that mutant CAMKIV species that lack the autoinhibitory domain are consitutively active (several Refs provided). Among others Chatila et al (1996, PMID: 8702940) studied an in vitro-engineered truncation mutant (Δ1-317 - truncation at position 317 of the protein) with functionally validated gain-of-function effect.

To prove enhanced activity of the splicing variant, Zech et al assessed phosphorylation of CREB (cyclic AMP-responsive element binding protein), a downstream substrate of CAMKIV. Immunobloting revealed significant increase of CREB phosphorylation in patient fibroblasts compared to controls. Overactivation of CAMKIV signaling was reversed when cells were treated with STO-609 an inhibitor of CAMKK, the ustream activator of CAMKIV.

Overall the authors demonstrated that loss of CAMKIV autoregulatory domain due to this splice variant had a gain-of-function effect.

----

Following trio-WES, Zech et al (2020 - PMID: 33098801) identified another relevant subject within cohort of 764 individuals with dystonia. This 12-y.o. male, harboring a different variant affecting the same donor site (c.981+1G>T), presented DD, ID, dystonia (onset at 3y) and additional movement disorders (myoclonus, ataxia) as well as similar behavior (ASD, autoaggression, stereotypies). [Details in suppl. p20].

----

Finally Zech et al (2020 - PMID: 33211350) reported on a 24-y.o. woman with adolescence onset choreodystonia. Other features included DD, moderate ID, absence seizures in infancy, OCD with anxiety and later diagnosis of ASD. Trio WES revealed a dn stopgain variant (c.940C>T; p.Gln314*).
Sources: Expert Review
Mendeliome v0.8452 PCLO Zornitza Stark Phenotypes for gene: PCLO were changed from to Pontocerebellar hypoplasia, type 3, MIM#608027
Mendeliome v0.8451 PCLO Zornitza Stark Publications for gene: PCLO were set to
Mendeliome v0.8450 PCLO Zornitza Stark Mode of inheritance for gene: PCLO was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.8389 PCDHGC4 Zornitza Stark Marked gene: PCDHGC4 as ready
Mendeliome v0.8389 PCDHGC4 Zornitza Stark Gene: pcdhgc4 has been classified as Green List (High Evidence).
Mendeliome v0.8389 PCDHGC4 Zornitza Stark Classified gene: PCDHGC4 as Green List (high evidence)
Mendeliome v0.8389 PCDHGC4 Zornitza Stark Gene: pcdhgc4 has been classified as Green List (High Evidence).
Mendeliome v0.8388 PCDHGC4 Zornitza Stark gene: PCDHGC4 was added
gene: PCDHGC4 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PCDHGC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PCDHGC4 were set to 34244665
Phenotypes for gene: PCDHGC4 were set to Intellectual disability; Seizures
Review for gene: PCDHGC4 was set to GREEN
Added comment: Eight variants reported in 19 members of nine unreleted families with a neurodevelopmental syndrome. Severe or moderate intellectual disabilty in eight families and seizures in four families. Four of the variants were LoF, in silico analysis of the remaining missense (n=3) and splice variants were predicted to be pathogenic.
Sources: Literature
Mendeliome v0.8229 ATP9A Arina Puzriakova gene: ATP9A was added
gene: ATP9A was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ATP9A was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ATP9A were set to http://dx.doi.org/10.1136/jmedgenet-2021-107843
Phenotypes for gene: ATP9A were set to Neurodevelopmental delay; Postnatal microcephaly; Failure to thrive; Gastrointestinal symptoms
Review for gene: ATP9A was set to AMBER
Added comment: Vogt et al. 2021 report on 3 individuals from 2 unrelated consanguineous families with different homozygous truncating variants in ATP9A, presenting with DD/ID of variable degree (2 mild, 1 severe), postnatal microcephaly (OFC range: −2.33 SD to −3.58 SD), failure to thrive, and gastrointestinal symptoms. Patient-derived fibroblasts showed reduced expression of ATP9A, and consistent with previous findings also overexpression of interacting partners, ARPC3 and SNX3.
Sources: Literature
Mendeliome v0.7973 MYBPC1 Zornitza Stark Marked gene: MYBPC1 as ready
Mendeliome v0.7973 MYBPC1 Zornitza Stark Gene: mybpc1 has been classified as Green List (High Evidence).
Mendeliome v0.7973 MYBPC1 Zornitza Stark Phenotypes for gene: MYBPC1 were changed from to Arthrogryposis, distal, type 1B 614335; Lethal congenital contracture syndrome 4, MIM# 614915; Myopathy, congenital, with tremor MIM#618524
Mendeliome v0.7972 MYBPC1 Zornitza Stark Publications for gene: MYBPC1 were set to
Mendeliome v0.7971 MYBPC1 Zornitza Stark Mode of inheritance for gene: MYBPC1 was changed from Unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.7970 MYBPC1 Zornitza Stark reviewed gene: MYBPC1: Rating: GREEN; Mode of pathogenicity: None; Publications: 20045868, 22610851, 23873045, 26661508, 31264822, 31025394; Phenotypes: Arthrogryposis, distal, type 1B 614335, Lethal congenital contracture syndrome 4, MIM# 614915, Myopathy, congenital, with tremor MIM#618524; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.7945 MYBPC2 Zornitza Stark Marked gene: MYBPC2 as ready
Mendeliome v0.7945 MYBPC2 Zornitza Stark Gene: mybpc2 has been classified as Red List (Low Evidence).
Mendeliome v0.7945 MYBPC2 Zornitza Stark gene: MYBPC2 was added
gene: MYBPC2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MYBPC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MYBPC2 were set to 32732226
Phenotypes for gene: MYBPC2 were set to Fetal akinesia; Hydrops; Hygroma; Multiple pterygium
Review for gene: MYBPC2 was set to RED
Added comment: Novel candidate gene identified in a fetus with fetal akinesia detected by ultrasound. Autopsy showed multiple congenital abnormalities including hydrops, hygroma, multiple pterygium. A homozygous variant (c.3394G>A/ p.Glu1132Lys) in MYBPC2 was found by exome sequencing with concordant segregation among one affected sib and two unaffected sibs.
Sources: Literature
Mendeliome v0.7409 HPCA Zornitza Stark Marked gene: HPCA as ready
Mendeliome v0.7409 HPCA Zornitza Stark Gene: hpca has been classified as Green List (High Evidence).
Mendeliome v0.7409 HPCA Zornitza Stark Phenotypes for gene: HPCA were changed from to Dystonia 2, torsion, autosomal recessive, MIM# 224500; MONDO:0009141
Mendeliome v0.7408 HPCA Zornitza Stark Publications for gene: HPCA were set to
Mendeliome v0.7407 HPCA Zornitza Stark Mode of inheritance for gene: HPCA was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7406 HPCA Zornitza Stark reviewed gene: HPCA: Rating: GREEN; Mode of pathogenicity: None; Publications: 25799108, 30991467, 30145809; Phenotypes: Dystonia 2, torsion, autosomal recessive, MIM# 224500, MONDO:0009141; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7378 PCYT1A Zornitza Stark Marked gene: PCYT1A as ready
Mendeliome v0.7378 PCYT1A Zornitza Stark Gene: pcyt1a has been classified as Green List (High Evidence).
Mendeliome v0.7378 PCYT1A Zornitza Stark Phenotypes for gene: PCYT1A were changed from to Spondylometaphyseal dysplasia with cone-rod dystrophy, MIM# 608940; Congenital lipodystrophy
Mendeliome v0.7377 PCYT1A Zornitza Stark Publications for gene: PCYT1A were set to
Mendeliome v0.7376 PCYT1A Zornitza Stark Mode of inheritance for gene: PCYT1A was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7375 PCYT1A Zornitza Stark reviewed gene: PCYT1A: Rating: GREEN; Mode of pathogenicity: None; Publications: 24387990, 24387991, 24889630; Phenotypes: Spondylometaphyseal dysplasia with cone-rod dystrophy, MIM# 608940, Congenital lipodystrophy; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7347 DNAJB13 Zornitza Stark changed review comment from: Additional individual identified by VCGS laboratory, homozygous LoF variant.; to: Additional individual identified by VCGS laboratory, homozygous LoF variant and PCD.
Mendeliome v0.7307 XPC Zornitza Stark Marked gene: XPC as ready
Mendeliome v0.7307 XPC Zornitza Stark Gene: xpc has been classified as Green List (High Evidence).
Mendeliome v0.7307 XPC Zornitza Stark Phenotypes for gene: XPC were changed from to Xeroderma pigmentosum, group C, MIM# 278720; MONDO:0010211
Mendeliome v0.7306 XPC Zornitza Stark Publications for gene: XPC were set to
Mendeliome v0.7305 XPC Zornitza Stark Mode of inheritance for gene: XPC was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7304 XPC Zornitza Stark reviewed gene: XPC: Rating: GREEN; Mode of pathogenicity: None; Publications: 10447254; Phenotypes: Xeroderma pigmentosum, group C, MIM# 278720, MONDO:0010211; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.7186 EXOSC1 Zornitza Stark gene: EXOSC1 was added
gene: EXOSC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EXOSC1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EXOSC1 were set to 33463720
Phenotypes for gene: EXOSC1 were set to Pontocerebellar hypoplasia
Review for gene: EXOSC1 was set to RED
Added comment: An 8‐months‐old male with developmental delay, microcephaly, subtle dysmorphism, hypotonia, pontocerebellar hypoplasia and delayed myelination. Similarly affected elder sibling succumbed at the age of 4‐years 6‐months. Exome sequencing revealed a homozygous missense variant (c.104C >T, p.Ser35Leu) in EXOSC1. In silico mutagenesis revealed loss of a polar contact with neighbouring Leu37 residue. Quantitative real‐time PCR indicated no appreciable differences in EXOSC1 transcript levels. Immunoblotting and blue native PAGE revealed reduction in the EXOSC1 protein levels and EXO9 complex in the proband, respectively. Of note, bi‐allelic variants in other exosome subunits EXOSC3, EXOSC8 and EXOSC9 have been reported to cause pontocerebellar hypoplasia type 1B, type 1C and type 1D, respectively.
Sources: Literature
Mendeliome v0.7127 GIPC1 Alison Yeung Classified gene: GIPC1 as Amber List (moderate evidence)
Mendeliome v0.7127 GIPC1 Alison Yeung Gene: gipc1 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.7124 GIPC1 Dean Phelan reviewed gene: GIPC1: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID: 33374016; Phenotypes: Oculopharyngodistal myopathy 2 (MIM#618940); Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.6972 PCNT Zornitza Stark Marked gene: PCNT as ready
Mendeliome v0.6972 PCNT Zornitza Stark Gene: pcnt has been classified as Green List (High Evidence).
Mendeliome v0.6972 PCNT Zornitza Stark Phenotypes for gene: PCNT were changed from to Microcephalic osteodysplastic primordial dwarfism, type II, MIM# 210720; MONDO:0008872
Mendeliome v0.6971 PCNT Zornitza Stark Publications for gene: PCNT were set to
Mendeliome v0.6970 PCNT Zornitza Stark Mode of inheritance for gene: PCNT was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6969 PCNT Zornitza Stark reviewed gene: PCNT: Rating: GREEN; Mode of pathogenicity: None; Publications: 18174396, 12210304, 30922925, 33460028, 32557621, 32267100; Phenotypes: Microcephalic osteodysplastic primordial dwarfism, type II, MIM# 210720, MONDO:0008872; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6703 ARPC1B Zornitza Stark Marked gene: ARPC1B as ready
Mendeliome v0.6703 ARPC1B Zornitza Stark Gene: arpc1b has been classified as Green List (High Evidence).
Mendeliome v0.6703 ARPC1B Zornitza Stark Phenotypes for gene: ARPC1B were changed from to Platelet abnormalities with eosinophilia and immune-mediated inflammatory disease 617718
Mendeliome v0.6702 ARPC1B Zornitza Stark Publications for gene: ARPC1B were set to
Mendeliome v0.6701 ARPC1B Zornitza Stark Mode of inheritance for gene: ARPC1B was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6700 ARPC1B Zornitza Stark reviewed gene: ARPC1B: Rating: GREEN; Mode of pathogenicity: None; Publications: 28368018, 33679784; Phenotypes: Platelet abnormalities with eosinophilia and immune-mediated inflammatory disease 617718; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6516 PCBD1 Zornitza Stark Marked gene: PCBD1 as ready
Mendeliome v0.6516 PCBD1 Zornitza Stark Gene: pcbd1 has been classified as Green List (High Evidence).
Mendeliome v0.6516 PCBD1 Zornitza Stark Phenotypes for gene: PCBD1 were changed from to Hyperphenylalaninemia, BH4-deficient, D, MIM# 264070
Mendeliome v0.6515 PCBD1 Zornitza Stark Publications for gene: PCBD1 were set to
Mendeliome v0.6514 PCBD1 Zornitza Stark Mode of inheritance for gene: PCBD1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6513 PCBD1 Zornitza Stark reviewed gene: PCBD1: Rating: GREEN; Mode of pathogenicity: None; Publications: 24204001; Phenotypes: Hyperphenylalaninemia, BH4-deficient, D, MIM# 264070; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6501 PCBD1 Michelle Torres edited their review of gene: PCBD1: Added comment: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes.

PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; Changed phenotypes: MODY, Hyperphenylalaninemia, BH4-deficient, D 264070
Mendeliome v0.6494 PCBD1 Michelle Torres changed review comment from: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes.

PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; to: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes.

PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY
Mendeliome v0.6490 PCBD1 Michelle Torres changed review comment from: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes with features similar to dominantly inherited HNF1A-diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes.

PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY; to: PMID: 24848070: one consanguineous family with early-onset nonautoimmune diabetes. The individual with early onset is biallelic, and 3 other carriers had later onset diabetes. In addition, 3 other patients with mild neonatal hyperphenylalaninemia with features similar to dominantly inherited HNF1A-diabetes.

PMID: 24204001: 2 out 3 patients with hypomagnesemia and renal magnesium wasting associated to biallelic PCBD1 variants developed MODY
Mendeliome v0.6487 PCBD1 Michelle Torres reviewed gene: PCBD1: Rating: GREEN; Mode of pathogenicity: None; Publications: 24848070, 24204001; Phenotypes: MODY; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6460 G6PC Zornitza Stark Marked gene: G6PC as ready
Mendeliome v0.6460 G6PC Zornitza Stark Gene: g6pc has been classified as Green List (High Evidence).
Mendeliome v0.6460 G6PC Zornitza Stark Phenotypes for gene: G6PC were changed from to Glycogen storage disease Ia, MIM# 232200
Mendeliome v0.6459 G6PC Zornitza Stark Publications for gene: G6PC were set to
Mendeliome v0.6458 G6PC Zornitza Stark Mode of inheritance for gene: G6PC was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6457 G6PC Zornitza Stark reviewed gene: G6PC: Rating: GREEN; Mode of pathogenicity: None; Publications: 8733042; Phenotypes: Glycogen storage disease Ia, MIM# 232200; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.6193 PCDH19 Zornitza Stark Mode of inheritance for gene: PCDH19 was changed from X-LINKED: hemizygous mutation in males, biallelic mutations in females to Other
Mendeliome v0.6192 PCDH19 Zornitza Stark reviewed gene: PCDH19: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: ; Mode of inheritance: Other
Mendeliome v0.6187 BRWD1 Paul De Fazio gene: BRWD1 was added
gene: BRWD1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BRWD1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BRWD1 were set to 33389130
Phenotypes for gene: BRWD1 were set to Asthenoteratozoospermia, likely primary ciliary dyskinesia
Review for gene: BRWD1 was set to GREEN
gene: BRWD1 was marked as current diagnostic
Added comment: Biallelic missense variants reported in 3 unrelated individuals. Apart from asthenoteratozoospermia, all 3 had PCD or "PCD-likely" symptoms of re-occurring airway infections, bronchiectasis, and rhinosinusitis. One individual had situs inversus. Studies on cells from one indivdidual showed abnormal respiratory cilia structure. BRWD1 staining was absent from respiratory cilia in this individual (present in controls).

Rated Green as there are three unrelated individuals reported.
Sources: Literature
Mendeliome v0.5914 EPCAM Zornitza Stark Marked gene: EPCAM as ready
Mendeliome v0.5914 EPCAM Zornitza Stark Gene: epcam has been classified as Green List (High Evidence).
Mendeliome v0.5914 EPCAM Zornitza Stark Phenotypes for gene: EPCAM were changed from to Diarrhea 5, with tufting enteropathy, congenital, MIM# 613217
Mendeliome v0.5913 EPCAM Zornitza Stark Publications for gene: EPCAM were set to
Mendeliome v0.5912 EPCAM Zornitza Stark Mode of inheritance for gene: EPCAM was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5911 EPCAM Zornitza Stark reviewed gene: EPCAM: Rating: GREEN; Mode of pathogenicity: None; Publications: 24142340; Phenotypes: Diarrhea 5, with tufting enteropathy, congenital, MIM# 613217; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.5609 CDC40 Zornitza Stark gene: CDC40 was added
gene: CDC40 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDC40 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CDC40 were set to 33220177
Phenotypes for gene: CDC40 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: CDC40 was set to RED
Added comment: Single individual reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID, thrombocytopaenia, anaemia. Interaction with PPIL1 and mouse model support gene-disease association. Gene referred to as PRP17 in paper.
Sources: Literature
Mendeliome v0.5607 PPIL1 Zornitza Stark gene: PPIL1 was added
gene: PPIL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPIL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPIL1 were set to 33220177
Phenotypes for gene: PPIL1 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: PPIL1 was set to GREEN
Added comment: 17 individuals from 9 unrelated families reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID. Mouse models support gene-disease association.
Sources: Literature
Mendeliome v0.5579 EMC10 Zornitza Stark gene: EMC10 was added
gene: EMC10 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: EMC10 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: EMC10 were set to 32869858
Phenotypes for gene: EMC10 were set to Intellectual disability
Review for gene: EMC10 was set to RED
Added comment: Homozygous variants of EMC1 are associated with GDD, scoliosis, and cerebellar atrophy, indicating the relevance of this pathway for neurogenetic disorders.

One Saudi family with 2 affected individuals with mild ID, speech delay, and GDD.
WES and Sanger sequencing revealed a homozygous splice acceptor site variant (c.679‐1G>A) in EMC10 . Variant segregated within the family. RT‐qPCR showed a substantial decrease in the relative EMC10 gene expression in the patients.
Sources: Literature
Mendeliome v0.5553 MINPP1 Zornitza Stark gene: MINPP1 was added
gene: MINPP1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MINPP1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MINPP1 were set to 33257696
Phenotypes for gene: MINPP1 were set to Pontocerebellar hypoplasia
Review for gene: MINPP1 was set to GREEN
Added comment: 8 individuals from 6 unrelated families reported with bi-allelic LOF variants. All presented with almost complete absence of motor and cognitive development, progressive or congenital microcephaly, spastic tetraplegia or dystonia, and vision impairments. For most, the first symptoms included neonatal severe axial hypotonia and epilepsy that started during the first months or years of life. Prenatal symptoms of microcephaly associated with increased thalami echogenicity were detected in one, while the seven other individuals presented with progressive microcephaly. Some exhibited rapidly progressive phenotype and the affected children died in their infancy or middle-childhood. Strikingly, all the affected children had a unique brain MRI showing a mild to severe PCH, fluid-filled posterior fossa, with dilated lateral ventricles. In addition, severe atrophy at the level of the basal ganglia or thalami often associated with typical T2 hypersignal were identified in all the patients MRI.

Supportive functional data showing accumulation of highly phosphorylated inositols, mostly inositol hexakisphosphate (IP6), detected in HEK293 cells, fibroblasts, iPSCs and differentiating neurons lacking MINPP1. In mutant cells, higher IP6 level is expected to be associated with an increased chelation of intracellular cations, such as iron or calcium, resulting in decreased levels of available ions.
Sources: Literature
Mendeliome v0.5392 ANAPC1 Zornitza Stark Tag deep intronic tag was added to gene: ANAPC1.
Mendeliome v0.5392 ANAPC1 Zornitza Stark reviewed gene: ANAPC1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Rothmund-Thomson syndrome, type 1 618625; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4932 WDPCP Zornitza Stark Publications for gene: WDPCP were set to 20671153; 25427950
Mendeliome v0.4931 WDPCP Zornitza Stark Classified gene: WDPCP as Green List (high evidence)
Mendeliome v0.4931 WDPCP Zornitza Stark Gene: wdpcp has been classified as Green List (High Evidence).
Mendeliome v0.4930 WDPCP Zornitza Stark commented on gene: WDPCP: Four families reported with ciliopathy phenotypes, including BBS, OFD, syndromic retinopathy.
Mendeliome v0.4930 WDPCP Zornitza Stark edited their review of gene: WDPCP: Changed rating: GREEN; Changed publications: 20671153, 25427950, 32055034, 29588463, 28289185; Changed phenotypes: Bardet-Biedl syndrome 15, MIM# 615992, OFD, Congenital heart defects, hamartomas of tongue, and polysyndactyly, 217085
Mendeliome v0.4930 WDPCP Zornitza Stark Marked gene: WDPCP as ready
Mendeliome v0.4930 WDPCP Zornitza Stark Gene: wdpcp has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4930 WDPCP Zornitza Stark Phenotypes for gene: WDPCP were changed from Bardet-Biedl syndrome 15, MIM# 615992; OFD; Congenital heart defects, hamartomas of tongue, and polysyndactyly, 217085 to Bardet-Biedl syndrome 15, MIM# 615992; OFD; Congenital heart defects, hamartomas of tongue, and polysyndactyly, 217085
Mendeliome v0.4930 WDPCP Zornitza Stark Phenotypes for gene: WDPCP were changed from to Bardet-Biedl syndrome 15, MIM# 615992; OFD; Congenital heart defects, hamartomas of tongue, and polysyndactyly, 217085
Mendeliome v0.4929 WDPCP Zornitza Stark Publications for gene: WDPCP were set to
Mendeliome v0.4928 WDPCP Zornitza Stark Mode of inheritance for gene: WDPCP was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4927 WDPCP Zornitza Stark Classified gene: WDPCP as Amber List (moderate evidence)
Mendeliome v0.4927 WDPCP Zornitza Stark Gene: wdpcp has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4926 WDPCP Zornitza Stark reviewed gene: WDPCP: Rating: AMBER; Mode of pathogenicity: None; Publications: 20671153, 25427950; Phenotypes: Bardet-Biedl syndrome 15, MIM# 615992, OFD; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4918 TRAPPC9 Zornitza Stark Publications for gene: TRAPPC9 were set to 22549410; 20004765; 20004763; 30853973
Mendeliome v0.4917 TRAPPC9 Zornitza Stark Tag SV/CNV tag was added to gene: TRAPPC9.
Mendeliome v0.4917 TRAPPC9 Elena Savva edited their review of gene: TRAPPC9: Added comment: PMID: 29187737 - multiple intragenic CNVs reported for this gene; Changed publications: PMID: 29187737
Mendeliome v0.4917 GPC6 Zornitza Stark Publications for gene: GPC6 were set to 19481194
Mendeliome v0.4916 GPC6 Elena Savva reviewed gene: GPC6: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 19481194, 32655339; Phenotypes: Omodysplasia 1 MIM#258315; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4892 GPC6 Zornitza Stark Marked gene: GPC6 as ready
Mendeliome v0.4892 GPC6 Zornitza Stark Gene: gpc6 has been classified as Green List (High Evidence).
Mendeliome v0.4892 GPC6 Zornitza Stark Tag SV/CNV tag was added to gene: GPC6.
Mendeliome v0.4892 GPC6 Zornitza Stark Phenotypes for gene: GPC6 were changed from to Omodysplasia 1 (MIM#258315), AR
Mendeliome v0.4891 GPC6 Zornitza Stark Publications for gene: GPC6 were set to
Mendeliome v0.4890 GPC6 Zornitza Stark Mode of inheritance for gene: GPC6 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4889 GPC6 Kristin Rigbye reviewed gene: GPC6: Rating: GREEN; Mode of pathogenicity: None; Publications: 19481194; Phenotypes: Omodysplasia 1 (MIM#258315), AR; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4874 ITFG2 Zornitza Stark gene: ITFG2 was added
gene: ITFG2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ITFG2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: ITFG2 were set to 28397838; https://doi.org/10.1038/s41525-020-00150-z
Phenotypes for gene: ITFG2 were set to Neurodevelopmental abnormality; Intellectual disability; Developmental regression; Ataxia
Review for gene: ITFG2 was set to AMBER
Added comment: ITFG2 was suggested to be a candidate gene for autosomal recessive ID in the study by Harripaul et al (2018 - PMID: 28397838). The authors performed microarray and exome sequencing in 192 consanguineous families and identified a homozygous ITGF2 stopgain variant (NM_018463.3:c.472G>T / p.Glu158*) along with 3 additional variants segregating with ID within an investigated family (PK51). Cheema et al (2020 - https://doi.org/10.1038/s41525-020-00150-z) report briefly on a male, born to consanguineous parents presenting with NDD, seizures, regression and ataxia. There was a similarly affected female sibling. Evaluation of ROH revealed a homozygous ITFG2 nonsense variant [NM_018463.3:c.361C>T / p.(Gln121*)]. Families in this study were investigated by trio WES or WGS. Evaluation of data of the same lab revealed 3 additional unrelated subjects with overlapping phenotypes, notably NDD and ataxia. These individuals were - each - homozygous for pLoF variants [NM_018463.3:c.848-1G>A; NM_018463.3:c.704dupC, p.(Ala236fs), NM_018463.3:c.1000_1001delAT, p.(Ile334fs)]. As discussed in OMIM, ITFG2 encodes a subunit of the KICSTOR protein complex, having a role in regulating nutrient sensing by MTOR complex-1 (Wolfson et al 2017 - PMID : 28199306).

Rated Amber as Cheema et al report on diagnostic outcomes and multiple candidate genes as part of a heterogenous cohort and details are therefore limited.
Sources: Literature
Mendeliome v0.4789 GOLGA3 Elena Savva gene: GOLGA3 was added
gene: GOLGA3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: GOLGA3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: GOLGA3 were set to PMID: 23495255
Phenotypes for gene: GOLGA3 were set to Primary ciliary dyskinesia
Review for gene: GOLGA3 was set to RED
Added comment: https://link.springer.com/article/10.1007/s00439-020-02170-2
Two siblings with a homozygous missense and PCD

PMID: 23495255; null mice have failed spermatogenesis
Sources: Literature
Mendeliome v0.4788 AKNA Elena Savva gene: AKNA was added
gene: AKNA was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: AKNA was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: AKNA were set to PMID: 21606955
Phenotypes for gene: AKNA were set to Primary ciliary dyskinesia
Review for gene: AKNA was set to RED
Added comment: https://link.springer.com/article/10.1007/s00439-020-02170-2
Two siblings with homozygous PTCs with PCD. Carrier parents and mutation negative siblings (5) was normal.

PMID: 21606955: Null mice have neonatal death with systemic inflammation and alveolar loss
Sources: Literature
Mendeliome v0.4785 RNPC3 Zornitza Stark Marked gene: RNPC3 as ready
Mendeliome v0.4785 RNPC3 Zornitza Stark Gene: rnpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4785 RNPC3 Zornitza Stark Classified gene: RNPC3 as Amber List (moderate evidence)
Mendeliome v0.4785 RNPC3 Zornitza Stark Gene: rnpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4784 RNPC3 Zornitza Stark gene: RNPC3 was added
gene: RNPC3 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: RNPC3 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: RNPC3 were set to 29866761; 32462814
Phenotypes for gene: RNPC3 were set to Growth hormone deficiency
Review for gene: RNPC3 was set to AMBER
Added comment: Two families reported. PMID 29866761: isolated growth deficiency and pituitary hypoplasia. PMID 32462814: growth hormone deficiency, central congenital hypothyroidism, congenital cataract, developmental delay/intellectual deficiency and delayed puberty. Full spectrum of phenotype unclear at present.
Sources: Literature
Mendeliome v0.4720 PCDH15 Zornitza Stark Marked gene: PCDH15 as ready
Mendeliome v0.4720 PCDH15 Zornitza Stark Gene: pcdh15 has been classified as Green List (High Evidence).
Mendeliome v0.4720 PCDH15 Zornitza Stark Phenotypes for gene: PCDH15 were changed from to Usher syndrome, type 1F, MIM# 602083; Deafness, autosomal recessive 23, MIM# 609533
Mendeliome v0.4719 PCDH15 Zornitza Stark Publications for gene: PCDH15 were set to
Mendeliome v0.4718 PCDH15 Zornitza Stark Mode of inheritance for gene: PCDH15 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4717 PCDH15 Zornitza Stark reviewed gene: PCDH15: Rating: GREEN; Mode of pathogenicity: None; Publications: 11398101, 11487575, 11138007, 12782354, 16260500, 14570705, 25930172, 28281779; Phenotypes: Usher syndrome, type 1F, MIM# 602083, Deafness, autosomal recessive 23, MIM# 609533; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4668 BLOC1S5 Zornitza Stark gene: BLOC1S5 was added
gene: BLOC1S5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: BLOC1S5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: BLOC1S5 were set to 32565547
Phenotypes for gene: BLOC1S5 were set to Hermansky–Pudlak syndrome
Review for gene: BLOC1S5 was set to GREEN
Added comment: 2 unrelated patients with mild oculocutaneous albinism, moderate bleeding diathesis, platelet aggregation deficit, and a dramatically decreased number of platelet dense granules, all signs compatible with HPS. Identified distinct homozygous variants in the BLOC1S5 gene (patient 1: deletion of exons 3 and 4, patient 2: 1-bp deletion in exon 4). Parental segregation confirmatory in patient 1, quantitative PCR analysis confirmatory in patient 2). Functional tests performed on platelets of one patient displayed an absence of the obligate multisubunit complex BLOC-1, showing that the variant disrupts BLOC1S5 function and impairs BLOC-1 assembly. Expression of the patient-derived BLOC1S5 deletion in nonpigmented murine Bloc1s5-/- melan-mu melanocytes failed to rescue pigmentation, the assembly of a functional BLOC-1 complex, and melanosome cargo trafficking, unlike the wild-type allele. Pathogenic variants in the genes encoding three other BLOC-1 subunits (DTNBP1, BLOC1S3, and BLOC1S6) underlie HPS types 7, 8, and 9 respectively.
Sources: Literature
Mendeliome v0.4652 GIPC3 Zornitza Stark Marked gene: GIPC3 as ready
Mendeliome v0.4652 GIPC3 Zornitza Stark Gene: gipc3 has been classified as Green List (High Evidence).
Mendeliome v0.4652 GIPC3 Zornitza Stark Phenotypes for gene: GIPC3 were changed from to Deafness, autosomal recessive 15, MIM# 601869
Mendeliome v0.4651 GIPC3 Zornitza Stark Publications for gene: GIPC3 were set to
Mendeliome v0.4650 GIPC3 Zornitza Stark Mode of inheritance for gene: GIPC3 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4649 GIPC3 Zornitza Stark reviewed gene: GIPC3: Rating: GREEN; Mode of pathogenicity: None; Publications: 21326233, 21660509; Phenotypes: Deafness, autosomal recessive 15, MIM# 601869; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4520 SLC12A2 Zornitza Stark edited their review of gene: SLC12A2: Added comment: Monoallelic :
DD/ID was a feature in >= 6 individuals with monoallelic de novo SLC12A2. An individual with an exon 22 truncating variant was reported to have normal milestones and cognitive function. Exon 21 variants have been described in individuals with rather isolated hearing impairment (possibly some associated motor delay, but normal cognition). Hearing impairment was also reported in 2/6 patients with variants in other exons (1 missense / 1 frameshift).

Biallelic :
DD/ID was reported in at least 3 individuals in literature. Hearing impairment has been reported on 2 occasions (although this was not probably evaluated in all subjects).

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Monoallelic SLC12A2 mutations :

► Individuals with de novo mutations and developmental disorder were first identified by the DDD study (2017 - PMID: 28135719). 5 of them have been reported in detail by McNeill et al (below).

► McNeill et al (2020 - PMID: 32658972) report on 6 individuals with neurodevelopmental disorder due to de novo SLC12A2 mutation. All presented DD or ID ranging from mild to severe. ASD was reported in 3/6. Sensorineural hearing loss was a feature in 2/6 with the remaining having normal formal evaluations. Brain, cardiac and/or additional malformations were reported in a single individual. Following non-diagnostic prior work-up (CMA, FMR1 or other investigations) trio exome sequencing revealed missense (4/6) or truncating variants (2/6).

Three additional individuals (incl. a father and his son) with missense variants in exon 21 (NM_001046.3 / p.Glu979Lys and p.Glu980Lys) presented with bilateral sensorineural hearing loss. Speech and/or motor delay reported in these cases were attributed to the hearing impairment/vestibular arreflexia (cognitive abilities not tested).

SLC12A2 encodes sodium-potassium-chloride transporter 1 (also NKCC1).

The GTEx project has identified 8 isoforms. In brain both exon 21-containing/deleted isoforms are expressed (cited Morita et al 2014 - PMID: 24695712). As the authors discuss, RNA-seq of the developing mouse cochlea suggests that the exon 21 containing isoform is the single transcript expressed. Evidence from RNA-seq data (BrainSpan project) and literature suggests that the significant amounts of exon 21 lacking isoforms in fetal brain compensate for the deleterious effects of exon 21 variants and explain the lack of NDD in relevant patients.

Slc12a2 (NKCC1) null mouse model has demonstrated that the transporter plays a role in accumulation of the potassium rich endolymph in the inner ear, with NKCC1 absence causing sensorineural deafness and imbalance. Slc12a2 display cochlear malformations, loss of hair cells and hearing impairment (cited Delpire et al 1999 - PMID: 10369265). The brain phenotype has not been studied extensively, although loss of Slc12a2 has been shown to inhibit neurogenesis (cited: Magalhães and Rivera et al. - PMID: 27582690).

Slc12a2 null zebrafish display a collapse of the otic vesicle and reduced endolymph (Abbas and Whitfield, 2009 - PMID: 19633174) relevant to the human hearing disorder.

In vitro assessment of NKCC1 ion transporter function in Xenopus laevis, supported the deleterious effect of the identified variants (significant reduction in K+ influx). Using available single cell RNA-seq data the authors further demonstrated that SLC12A2 expressing cells display transcriptomic profiles reflective of active neurogenesis.

► Delpire et al (2016 - PMID: 27900370 - not reviewed in detail) described a 13 y.o. girl harboring a de novo 11-bp deletion in SLC12A2 exon 22. This individual reached developmental milestones on time and had a NORMAL cognitive function. Hearing was seemingly normal. Features included orthostatic intolerance, respiratory weakness, multiple endocrine abnormalities, pancreatic insufficiency and multiorgan failure incl. gut and bladder. Exome in the proband, parents and 3 unaffected sibs suggested SLC12A2 as the only candidate for her phenotype. Functional analyses in Xenopus laevis oocytes suggested that a non functional transporter was expressed and trafficked to the membrane as the wt. Detection of the truncated protein at higher molecular sizes suggested either enhanced dimerization or misfolded aggregate. There was no dominant-negative effect of mutant NKCC1. In patient fibroblasts a reduced total and NKCC1-mediated K+ influx.

► Mutai et al (2020 - PMID: 32294086) report on several individuals from 4 families, harboring variants within exon 21 or - in one case - at it's 3' splice-site (leading to skipping oe this exon at the mRNA level). All subjects were investigated for severe/profound hearing loss (in line with the role of exon 21-included isoforms in cochlea. The variant segregated with hearing impairment in 3 generations of a family while in all other subjects the variant had occured as de novo event. Despite motor delays (e.g. the subject from fam2 could not hold head or sit at the age of 10m / the proband in Fam3 was able to hold his head and walk at 6 and 20 m respectively) behavior and cognition were commented to be within normal range.


-----

Biallelic SLC12A2 mutations:

► Anazi et al (2017 - PMID: 29288388) briefly reported on a 3 y.o. boy (17DG0776) with central hypotonia, neonatal respiratory distress, failure to thrive, global DD and microcephaly and a skeletal survey suggestive of osteopenia. After non-diagnostic prior investigations (CMA revealing a 1p duplication classified as VUS, extensive metabolic workup), WES revealed a homozygous SLC12A2 splicing variant [NM_001046.2:c.2617-2A>G].

► Macnamara et al (2019 - PMID: 30740830) described a 5.5 y.o. male with sensorineural hearing loss, profound delays in all developmental areas among several other features (choanal atresia, failure to thrive, respiratory problems, absent sweat and tear production or salivation, GI abnormalities). Genetic testing for several disorders considered (cystic fibrosis, spinal muscular atrophy, sequencing and del/dup analysis of mtDNA) was normal. CMA revealed paternal uniparental isodisomy for chr. 5 and WGS a homozygous 22kb deletion in SLC12A2. This was followed by confirmation of homozygosity in the proband, heterozygosity of the unaffected father, delineation of breakpoints (chr5:127441491-127471419). mRNA studies in patient fibroblasts confirmed deletion of ex2-7, splicing of ex1 directly to ex8 and introduction of a premature stop codon in ex9. qRT-PCR confirmed that mRNA is likely subjected to NMD (expression ~80% of control). Western blot confirmed absence of the protein in the patient's fibroblasts. Again mouse models are thought to recapitulate the hearing defect but also the deficient saliva production (cited Evans et al 2000 - PMID: 10831596). Again the authors speculate a role of SLC12A2 in brain development based on evidence from murine models (migration, dendritic growth, increse in neuron density through regulation of GABAergic signalling (Young et al 2012 - PMID: 23015452). Hypotheses are also made on a regulatory relationship between NKCC1 and CFTR based on mRNA data from the ko mouse model.

► Stödberg et al (2020 - PMID: 32754646) reported 2 sibs with a complex neurodevelopmental disorder due to compound heterozygosity for a frameshift SLC12A2 variant and a splicing one (NM_001046:c.1431delT and c.2006-1G>A). Both presented hypotonia, neonatal S. aureus parotitis and respiratory problems (incl. apneas). While the older sib died at the age of 22 days, the younger one had persistent respiratory issues incl. a dry respiratory mucosa motivating metabolic, immunology investigations and testing for CF. She displayed microcephaly (OFC -2.5 SD, H was also -3.5SD), severe intellectual disability. MRI was suggestive of white matter and basal ganglia abnormalities. Other features incl. hearing impairment, and lack of tears,saliva and sweat, constipation and intestinal malrotation. There was facial dysmorphism. The variants were the only retained following WGS of the 2 affected sisters, parents and an unaffected brother. The splicing variant was shown to result in skipping of exon 13, while the indel in NMD. Again the authors discuss that the deficient saliva production, impaired hearing and GI problems are recapitulated in the mouse model (several refs provided).; Changed rating: GREEN; Changed publications: 28135719, 32658972, 27900370, 32294086, 29288388, 30740830, 32754646; Changed phenotypes: Kilquist syndrome, deafness, intellectual disability, dysmorphic features, absent salivation, ectodermal dysplasia, constipation, intestinal malrotation, multiple congenital anomalies; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Mendeliome v0.4220 TRAPPC6B Zornitza Stark Marked gene: TRAPPC6B as ready
Mendeliome v0.4220 TRAPPC6B Zornitza Stark Gene: trappc6b has been classified as Green List (High Evidence).
Mendeliome v0.4220 TRAPPC6B Zornitza Stark Phenotypes for gene: TRAPPC6B were changed from to Neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, MIM# 617862
Mendeliome v0.4219 TRAPPC6B Zornitza Stark Publications for gene: TRAPPC6B were set to
Mendeliome v0.4218 TRAPPC6B Zornitza Stark Mode of inheritance for gene: TRAPPC6B was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4217 TRAPPC6B Zornitza Stark reviewed gene: TRAPPC6B: Rating: GREEN; Mode of pathogenicity: None; Publications: 28626029, 28397838, 31687267; Phenotypes: Neurodevelopmental disorder with microcephaly, epilepsy, and brain atrophy, MIM# 617862; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4217 TRAPPC12 Zornitza Stark Phenotypes for gene: TRAPPC12 were changed from to Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, MIM# 617669
Mendeliome v0.4216 TRAPPC12 Zornitza Stark Publications for gene: TRAPPC12 were set to
Mendeliome v0.4215 TRAPPC12 Zornitza Stark Mode of inheritance for gene: TRAPPC12 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4214 TRAPPC12 Zornitza Stark reviewed gene: TRAPPC12: Rating: GREEN; Mode of pathogenicity: None; Publications: 32369837, 28777934; Phenotypes: Encephalopathy, progressive, early-onset, with brain atrophy and spasticity, MIM# 617669; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4145 PCYT2 Zornitza Stark Marked gene: PCYT2 as ready
Mendeliome v0.4145 PCYT2 Zornitza Stark Gene: pcyt2 has been classified as Green List (High Evidence).
Mendeliome v0.4145 PCYT2 Zornitza Stark Phenotypes for gene: PCYT2 were changed from to Spastic paraplegia 82, autosomal recessive 618770; global developmental delay; regression; spastic parapesis or tetraparesis; epilepsy; progressive cerebral and cerebellar atrophy
Mendeliome v0.4144 PCYT2 Zornitza Stark Mode of inheritance for gene: PCYT2 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4143 PCYT2 Zornitza Stark reviewed gene: PCYT2: Rating: GREEN; Mode of pathogenicity: None; Publications: 31637422; Phenotypes: Spastic paraplegia 82, autosomal recessive 618770; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.4143 TRAPPC2L Zornitza Stark Tag founder tag was added to gene: TRAPPC2L.
Mendeliome v0.4143 TRAPPC2L Zornitza Stark Marked gene: TRAPPC2L as ready
Mendeliome v0.4143 TRAPPC2L Zornitza Stark Gene: trappc2l has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4143 TRAPPC2L Zornitza Stark Classified gene: TRAPPC2L as Amber List (moderate evidence)
Mendeliome v0.4143 TRAPPC2L Zornitza Stark Gene: trappc2l has been classified as Amber List (Moderate Evidence).
Mendeliome v0.4134 TRAPPC2L Arina Puzriakova changed review comment from: Gene is associated with Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis in OMIM, but not in G2P.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.
Sources: Literature; to: Total of three families, but two share a founder variant, and there are some disparities between the clinical presentations reported in the two publications. Rating Amber as additional cases required to delineate the genotype-phenotype relationship.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.

Sources: Literature
Mendeliome v0.4134 TRAPPC2L Arina Puzriakova gene: TRAPPC2L was added
gene: TRAPPC2L was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRAPPC2L was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC2L were set to 30120216; 32843486
Phenotypes for gene: TRAPPC2L were set to Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis, 618331
Review for gene: TRAPPC2L was set to AMBER
Added comment: Gene is associated with Encephalopathy, progressive, early-onset, with episodic rhabdomyolysis in OMIM, but not in G2P.

PMID: 30120216 (2018) - Two unrelated probands with an identical homozygous missense (c.109G>T, p.Asp37Tyr) variant in TRAPPC2L. Both individuals presented neurodevelopmental delay, febrile illness-induced encephalopathy, and episodic rhabdomyolysis, followed by developmental arrest, seizures and tetraplegia. The variant segregated with the phenotype in each family, and haplotype analysis suggested a founder effect.

The mutant protein was expressed in patient fibroblasts, but displayed membrane trafficking delays. Studies in yeast showed that the variant impaired interaction with TRAPPC10, and increased levels of the active RAB11.


PMID: 32843486 (2020) - In an Ashkenazi Jewish family with three affected sibs with GDD/ID, WGS revealed a segregating homozygous missense variant (c.5G>C, p.Ala2Gly) in the TRAPPC2L gene. No seizures, brain MRI abnormalities, or illness provoked regression were documented in this family.

Comparable to the previous study, the variant resulted in delayed ER-to-Golgi trafficking and elevated levels of active RAB11. Studies using yeast and in vitro binding, showed that the variant disrupted interaction with another core TRAPP protein, TRAPPC6a.
Sources: Literature
Mendeliome v0.4134 PCGF2 Zornitza Stark Marked gene: PCGF2 as ready
Mendeliome v0.4134 PCGF2 Zornitza Stark Gene: pcgf2 has been classified as Green List (High Evidence).
Mendeliome v0.4134 PCGF2 Zornitza Stark Phenotypes for gene: PCGF2 were changed from to Turnpenny-Fry syndrome, MIM# 618371
Mendeliome v0.4133 PCGF2 Zornitza Stark Publications for gene: PCGF2 were set to
Mendeliome v0.4132 PCGF2 Zornitza Stark Mode of inheritance for gene: PCGF2 was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.4131 PCGF2 Zornitza Stark reviewed gene: PCGF2: Rating: GREEN; Mode of pathogenicity: None; Publications: 30343942; Phenotypes: Turnpenny-Fry syndrome, MIM# 618371; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.3872 LMBRD2 Zornitza Stark gene: LMBRD2 was added
gene: LMBRD2 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LMBRD2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: LMBRD2 were set to 32820033; https://doi.org/10.1101/797787
Phenotypes for gene: LMBRD2 were set to Global developmental delay; Intellectual disability; Microcephaly; Seizures; Abnormality of nervous system morphology; Abnormality of the eye
Mode of pathogenicity for gene: LMBRD2 was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: LMBRD2 was set to GREEN
Added comment: 13 individuals with dn missense SNVs overall, overlapping features for 10 with available phenotype / a recurring variant has been identified in 2 different studies.

► Malhotra et al (2020 - PMID: 32820033) report on 10 unrelated individuals with de novo missense LMBRD2 variants. Features included DD (9/10), ID (6/8 of relevant age), microcephaly (7/10), seizures (5/10 - >=3 different variants), structural brain abnormalities (e.g. thin CC in 6/9), highly variable ocular abnormalities (5/10) and dysmorphic features in some (7/10 - nonspecific). All had variable prior non-diagnostic genetic tests (CMA, gene panel, mendeliome, karyotype). WES/WGS revealed LMBRD2 missense variants, in all cases de novo. A single individual had additional variants with weaker evidence of pathogenicity. 5 unique missense SNVs and 2 recurrent ones (NM_001007527:c.367T>C - p.Trp123Arg / c.1448G>A - p.Arg483His) were identified. These occurred in different exons. Variants were not present in gnomAD and all had several in silico predictions in favor of a deleterious effect. There was phenotypic variability among individuals with the same variant (e.g. seizures in 1/3 and microchephaly in 2/3 of those harboring R483H). The gene has a pLI of 0 (although o/e ranges from 0.23 to 0.55), %HI of 15.13 and z-score of 2.27. The authors presume that haploinsufficiency may not apply, and consider a gain-of-function/dominant-negative effect more likely. As the authors comment LMBRD2 (LMBR1 domain containing 2) encodes a membrane bound protein with poorly described function. It is widely expressed across tissues with notable expression in human brain (also in Drosophila, or Xenopus laevis). It displays high interspecies conservation. It has been suggested (Paek et al - PMID: 28388415) that LMBRD2 is a potential regulator of β2 adrenoreceptor signalling through involvement in GPCR signalling.

► Kaplanis et al (2020 - https://doi.org/10.1101/797787) in a dataset of 31058 parent-offspring trios (WES) previously identified 3 individuals with developmental disorder, harboring c.1448G>A - p.Arg483His. These individuals (1 from the DDD study, and 2 GeneDx patients) appear in Decipher. [ https://decipher.sanger.ac.uk/ddd/research-variant/40e17c78cc9655a6721006fc1e0c98db/overview ]. The preprint by Kaplanis et al is cited by Malhotra et al, with Arg483His reported in 6 patients overall in both studies.
Sources: Literature
Mendeliome v0.3643 NARS Zornitza Stark gene: NARS was added
gene: NARS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NARS was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Publications for gene: NARS were set to 32738225
Phenotypes for gene: NARS were set to Abnormal muscle tone; Microcephaly; Global developmental delay; Intellectual disability; Seizures; Ataxia; Abnormality of the face; Demyelinating peripheral neuropathy
Review for gene: NARS was set to GREEN
Added comment: [Please note that HGNC Approved Gene Symbol for this gene is NARS1] Manole et al (2020 - PMID: 32738225) provide evidence that both biallelic and monoallelic (de novo) pathogenic NARS1 variants cause a neurodevelopmental disorder. In total 32 individuals from 21 families are reported, with biallelic variants identified in individuals from 13 families and de novo in 8 families. Similar features were reported for AR/AD occurrences of the disorder and included microcephaly (90% - most often primary), epilepsy (23/32 or 74% - variable semiology incl. partial/myoclonic/generalized tonic-clonic seizures), DD and ID (as a universal feature), abnormal tone in several (hypotonia/spasticity), ataxia, demyelinating peripheral neuropathy (in 3 or more for each inheritance mode - or a total of 25%). Some individuals had dysmorphic features. NARS1 encodes an aminoacyl-tRNA synthetase (ARS) [asparaginyl-tRNA synthetase 1]. Aminoacyl-tRNA synthetases constitute a family of enzymes catalyzing attachment of amino-acids to their cognate tRNAs. As the authors comment, mutations in genes encoding several other ARSs result in neurological disorders ranging from peripheral neuropathy to severe multi-systemic NDD. Dominant, recessive or both modes for inheritance for mutations in the same gene (e.g. AARS1, YARS1, MARS1, etc) have been reported. Some variants were recurrent, e.g. the c.1600C>T / p.Arg534* which occurred in 6 families as a de novo event or c.1633C>T p.Arg545Cys (homozygous in 6 families). 3 different variants were reported to have occured de novo (c.965G>T - p.Arg322Leu, c.1525G>A - p.Gly509Ser, p.Arg534*) with several other variants identified in hmz/compound htz individuals. A single SNV (c.1067A>C - p.Asp356Ala) was suggested to be acting as modifier and pathogenic only when in trans with a severe variant. [NM_004539.4 used as RefSeq for all]. The authors provide several lines of evidence for a partial loss-of-function effect (e.g. reduction in mRNA expression, enzyme levels and activity in fibroblasts or iNPCs) underlying pathogenicity of the variants identified in individuals with biallelic variants. A gain-of-function (dominant-negative) effect is proposed for de novo variants (such effect also demonstrated for the p.Arg534* in a zebrafish model).
Sources: Literature
Mendeliome v0.3561 TRIM63 Ain Roesley gene: TRIM63 was added
gene: TRIM63 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: TRIM63 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRIM63 were set to 30681346; 32451364
Phenotypes for gene: TRIM63 were set to Hypertrophic cardiomyopathy
Penetrance for gene: TRIM63 were set to unknown
Review for gene: TRIM63 was set to GREEN
Added comment: PMID: 30681346;
LIMITED by Clingen working group (last evaluated 2018)

PMID: 32451364
- 16 index cases with rare homozygous or compound heterozygous variants (15 HCM and one restrictive cardiomyopathy). None of these variants have homozygote counts in gnomAD.
- segregated in 3 families
- 1 index had another pathogenic truncating variant in MYBPC3
- 5 missense and 3 PTCs
- Familial evaluation showed that only homozygous and compound heterozygous had signs of disease, whereas all heterozygous family members were healthy
Sources: Literature
Mendeliome v0.3450 G6PC3 Zornitza Stark Marked gene: G6PC3 as ready
Mendeliome v0.3450 G6PC3 Zornitza Stark Gene: g6pc3 has been classified as Green List (High Evidence).
Mendeliome v0.3450 G6PC3 Zornitza Stark Phenotypes for gene: G6PC3 were changed from to Dursun syndrome 612541; Neutropenia, severe congenital 4, autosomal recessive 612541
Mendeliome v0.3449 G6PC3 Zornitza Stark Publications for gene: G6PC3 were set to
Mendeliome v0.3448 G6PC3 Zornitza Stark Mode of inheritance for gene: G6PC3 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.3444 G6PC3 Belinda Chong reviewed gene: G6PC3: Rating: GREEN; Mode of pathogenicity: None; Publications: 21385794; Phenotypes: Dursun syndrome 612541, Neutropenia, severe congenital 4, autosomal recessive 612541; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.3377 GIPC1 Zornitza Stark Marked gene: GIPC1 as ready
Mendeliome v0.3377 GIPC1 Zornitza Stark Gene: gipc1 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.3377 GIPC1 Zornitza Stark Classified gene: GIPC1 as Amber List (moderate evidence)
Mendeliome v0.3377 GIPC1 Zornitza Stark Gene: gipc1 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.3376 GIPC1 Zornitza Stark gene: GIPC1 was added
gene: GIPC1 was added to Mendeliome. Sources: Literature
5'UTR, STR tags were added to gene: GIPC1.
Mode of inheritance for gene: GIPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: GIPC1 were set to 32413282
Phenotypes for gene: GIPC1 were set to Oculopharyngodistal myopathy-2 (OPDM2), MIM#618940
Review for gene: GIPC1 was set to AMBER
Added comment: 19 families reported with heterozygous trinucleotide repeat expansion in the 5-prime untranslated region and onset of distal muscle weakness, mainly of the lower limbs, and/or ophthalmoplegia in the second or third decades of life. Note this is unlikely to be tractable currently by most NGS assays.
Sources: Literature
Mendeliome v0.3327 KIF21B Zornitza Stark gene: KIF21B was added
gene: KIF21B was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: KIF21B was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: KIF21B were set to 32415109
Phenotypes for gene: KIF21B were set to Global developmental delay; Intellectual disability; Abnormality of brain morphology; Microcephaly
Mode of pathogenicity for gene: KIF21B was set to Loss-of-function variants (as defined in pop up message) DO NOT cause this phenotype - please provide details in the comments
Review for gene: KIF21B was set to GREEN
Added comment: Asselin et al (2020 - PMID: 32415109) report on 4 individuals with KIF21B pathogenic variants. DD/ID (borderline intellectual functioning to severe ID) was a feature in all. Variable other findings included brain malformations (CCA) and microcephaly. 3 missense variants and a 4-bp insertion were identified, in 3 cases as de novo events while in a single subject the variant was inherited from the father who was also affected. The authors provide evidence for a role of KIF21B in the regulation of processes involved in cortical development and deleterious effect of the missense variants impeding neuronal migration and kinesin autoinhibition. Phenotypes specific to variants (e.g. CCA or microcephaly) were recapitulated in animal models. Missense variants are thought to exert a gain-of-function effect. As commented on, the 4-bp duplication (/frameshift) variant might not be pathogenic. In blood sample from the respective individual, RT-qPCR analysis suggested that haploinsufficiency (NMD) applies. Although Kif21b haploinsufficiency in mice was shown to lead to impaired neuronal positioning, the gene might partially tolerate LoF variants as also suggested by 28 such variants in gnomAD. Homozygous Kif21b ko mice display severe morphological abnormalities, partial loss of commissural fibers, cognitive deficits and altered synaptic transmission (several refs to previous studies provided by the authors).
Sources: Expert Review
Mendeliome v0.3192 NME5 Zornitza Stark gene: NME5 was added
gene: NME5 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: NME5 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: NME5 were set to 32185794
Phenotypes for gene: NME5 were set to Primary ciliary dyskinesia
Review for gene: NME5 was set to AMBER
Added comment: One patient with PCD with situs solitus, with radial spokes (RS) and central pair (CP) defects. Patient had a homozygous nonsense variant in NME5, with parents as carriers. Morpholino knockdown of nme5 in zebrafish embryos resulted in motile cilia defects with phenotypes compatible with ciliopathy.
Sources: Literature
Mendeliome v0.2932 DNAH6 Elena Savva gene: DNAH6 was added
gene: DNAH6 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: DNAH6 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: DNAH6 were set to PMID: 26918822
Phenotypes for gene: DNAH6 were set to Heterotaxy, Azoospermia
Review for gene: DNAH6 was set to AMBER
Added comment: PMID: 26918822 - zebrafish model has disrupted motile cilia and cilia length, with some body axis defects within embryos. Transfected human cells also had defective motile cilia and cilia width.
Two patients with heterotaxy, one homozygous (missense), the other heterozygous (missense), but the heterozygous carrier has an additional known PCD mutation in DNA1.

Summary: 1 convincing patient with animal model
Sources: Literature
Mendeliome v0.2620 POLR3GL Paul De Fazio gene: POLR3GL was added
gene: POLR3GL was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: POLR3GL was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: POLR3GL were set to 31089205; 31695177
Phenotypes for gene: POLR3GL were set to endosteal hyperostosis; oligodontia; growth retardation; facial dysmorphisms; lipodystrophy
Review for gene: POLR3GL was set to AMBER
gene: POLR3GL was marked as current diagnostic
Added comment: Biallelic canonical splice variants were identified in monozygotic twins and another individual with similar phenotypes from 2 unrelated families. Variants were inherited from carrier parents. RNA studies confirmed exon skipping occurs in all affected individuals.

A separate study identified a homozygous nonsense variant in an individual with features of Neonatal progeroid syndrome/Wiedemann–Rautenstrauch syndrome. Quantitative PCR showed reduction in mRNA suggestive of NMD.
Sources: Literature
Mendeliome v0.2598 WDR83OS Ee Ming Wong gene: WDR83OS was added
gene: WDR83OS was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: WDR83OS was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: WDR83OS were set to PMID: 30250217
Phenotypes for gene: WDR83OS were set to Cholestasis
Review for gene: WDR83OS was set to RED
Added comment: - 1 consanguineous family with 3 affected individuals found to carry a homozygous splice site variant in WDR83OS
- The variant results in an aberrant truncated RNA transcript as demonstrated by RT-PCR
Sources: Literature
Mendeliome v0.2431 PCDH19 Zornitza Stark Marked gene: PCDH19 as ready
Mendeliome v0.2431 PCDH19 Zornitza Stark Gene: pcdh19 has been classified as Green List (High Evidence).
Mendeliome v0.2431 PCDH19 Zornitza Stark Phenotypes for gene: PCDH19 were changed from to Epileptic encephalopathy, early infantile, 9 300088; PCDH19-related epilepsy (early seizure onset, generalised or focused seizures); cognitive impairment
Mendeliome v0.2430 PCDH19 Zornitza Stark Publications for gene: PCDH19 were set to
Mendeliome v0.2429 PCDH19 Zornitza Stark Mode of inheritance for gene: PCDH19 was changed from Unknown to X-LINKED: hemizygous mutation in males, biallelic mutations in females
Mendeliome v0.2371 PCDH19 Ee Ming Wong reviewed gene: PCDH19: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 18469813, 30287595; Phenotypes: PCDH19-related epilepsy (early seizure onset, generalised or focused seizures), cognitive impairment; Mode of inheritance: X-LINKED: hemizygous mutation in males, biallelic mutations in females; Current diagnostic: yes
Mendeliome v0.2324 TRAPPC9 Zornitza Stark Publications for gene: TRAPPC9 were set to 22549410; 20004765; 20004763
Mendeliome v0.2323 TRAPPC9 Zornitza Stark Marked gene: TRAPPC9 as ready
Mendeliome v0.2323 TRAPPC9 Zornitza Stark Gene: trappc9 has been classified as Green List (High Evidence).
Mendeliome v0.2323 TRAPPC9 Zornitza Stark Phenotypes for gene: TRAPPC9 were changed from to Mental retardation, autosomal recessive 13, MIM# 613192
Mendeliome v0.2322 TRAPPC9 Zornitza Stark Publications for gene: TRAPPC9 were set to
Mendeliome v0.2321 TRAPPC9 Zornitza Stark Mode of inheritance for gene: TRAPPC9 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.2320 TRAPPC9 Zornitza Stark reviewed gene: TRAPPC9: Rating: GREEN; Mode of pathogenicity: None; Publications: 22549410, 20004765, 20004763; Phenotypes: Mental retardation, autosomal recessive 13, MIM# 613192; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.2303 TRAPPC9 Elena Savva reviewed gene: TRAPPC9: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Mental retardation, autosomal recessive 13, 613192; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.2303 TRPC3 Bryony Thompson Marked gene: TRPC3 as ready
Mendeliome v0.2303 TRPC3 Bryony Thompson Gene: trpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2303 TRPC3 Bryony Thompson Classified gene: TRPC3 as Amber List (moderate evidence)
Mendeliome v0.2303 TRPC3 Bryony Thompson Gene: trpc3 has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2302 TRPC3 Bryony Thompson gene: TRPC3 was added
gene: TRPC3 was added to Mendeliome. Sources: Expert list
Mode of inheritance for gene: TRPC3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: TRPC3 were set to 25477146; 19351902
Phenotypes for gene: TRPC3 were set to Spinocerebellar ataxia 41 MIM#616410
Mode of pathogenicity for gene: TRPC3 was set to Other
Review for gene: TRPC3 was set to AMBER
Added comment: A heterozygous gain-of function missense has been identified in a 40-year-old man with adult-onset spinocerebellar ataxia. A mouse model of dominant cerebellar ataxia, termed 'moonwalker', contains a gain-of-function variant in this gene.
Sources: Expert list
Mendeliome v0.2208 PPCS Zornitza Stark Marked gene: PPCS as ready
Mendeliome v0.2208 PPCS Zornitza Stark Gene: ppcs has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2208 PPCS Zornitza Stark Phenotypes for gene: PPCS were changed from to Cardiomyopathy, dilated, 2C, MIM# 618189
Mendeliome v0.2207 PPCS Zornitza Stark Publications for gene: PPCS were set to
Mendeliome v0.2206 PPCS Zornitza Stark Mode of inheritance for gene: PPCS was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.2205 PPCS Zornitza Stark Classified gene: PPCS as Amber List (moderate evidence)
Mendeliome v0.2205 PPCS Zornitza Stark Gene: ppcs has been classified as Amber List (Moderate Evidence).
Mendeliome v0.2204 PPCS Zornitza Stark reviewed gene: PPCS: Rating: AMBER; Mode of pathogenicity: None; Publications: 29754768; Phenotypes: Cardiomyopathy, dilated, 2C, MIM# 618189; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.1324 PCDH10 Zornitza Stark Marked gene: PCDH10 as ready
Mendeliome v0.1324 PCDH10 Zornitza Stark Gene: pcdh10 has been classified as Red List (Low Evidence).
Mendeliome v0.1324 PCDH10 Zornitza Stark Phenotypes for gene: PCDH10 were changed from to Autism
Mendeliome v0.1323 PCDH10 Zornitza Stark Publications for gene: PCDH10 were set to
Mendeliome v0.1322 PCDH10 Zornitza Stark Mode of inheritance for gene: PCDH10 was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.1321 PCDH10 Zornitza Stark Classified gene: PCDH10 as Red List (low evidence)
Mendeliome v0.1321 PCDH10 Zornitza Stark Gene: pcdh10 has been classified as Red List (Low Evidence).
Mendeliome v0.1320 PCDH10 Zornitza Stark reviewed gene: PCDH10: Rating: RED; Mode of pathogenicity: None; Publications: 27567313, 18621663; Phenotypes: Autism; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Mendeliome v0.1259 TRAPPC4 Zornitza Stark Marked gene: TRAPPC4 as ready
Mendeliome v0.1259 TRAPPC4 Zornitza Stark Gene: trappc4 has been classified as Green List (High Evidence).
Mendeliome v0.1259 TRAPPC4 Zornitza Stark Classified gene: TRAPPC4 as Green List (high evidence)
Mendeliome v0.1259 TRAPPC4 Zornitza Stark Gene: trappc4 has been classified as Green List (High Evidence).
Mendeliome v0.1258 TRAPPC4 Zornitza Stark gene: TRAPPC4 was added
gene: TRAPPC4 was added to Mendeliome. Sources: Expert Review
Mode of inheritance for gene: TRAPPC4 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: TRAPPC4 were set to 31794024
Phenotypes for gene: TRAPPC4 were set to intellectual disability; epilepsy; spasticity; microcephaly
Review for gene: TRAPPC4 was set to GREEN
Added comment: Seven individuals from three unrelated families reported; recurrent splice site variant (hg19:chr11:g.118890966A>G; TRAPPC4: NM_016146.5; c.454+3A>G), not a founder variant.
Sources: Expert Review
Mendeliome v0.1022 ANAPC1 Alison Yeung Mode of inheritance for gene ANAPC1 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.1021 ANAPC1 Alison Yeung Marked gene: ANAPC1 as ready
Mendeliome v0.1021 ANAPC1 Alison Yeung Gene: anapc1 has been classified as Green List (High Evidence).
Mendeliome v0.1021 ANAPC1 Alison Yeung Classified gene: ANAPC1 as Green List (high evidence)
Mendeliome v0.1021 ANAPC1 Alison Yeung Gene: anapc1 has been classified as Green List (High Evidence).
Mendeliome v0.1020 ANAPC1 Alison Yeung gene: ANAPC1 was added
gene: ANAPC1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: ANAPC1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: ANAPC1 were set to PMID: 31303264
Phenotypes for gene: ANAPC1 were set to Rothmund Thomson syndrome type 1, OMIM 618625
Review for gene: ANAPC1 was set to GREEN
gene: ANAPC1 was marked as current diagnostic
Added comment: 7 unrelated families reported
Sources: Literature
Mendeliome v0.830 GPC4 Alison Yeung reviewed gene: GPC4: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 30982611; Phenotypes: Keipert syndrome OMIM# 301026; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males); Current diagnostic: yes
Mendeliome v0.290 MEPCE Zornitza Stark Marked gene: MEPCE as ready
Mendeliome v0.290 MEPCE Zornitza Stark Gene: mepce has been classified as Red List (Low Evidence).
Mendeliome v0.290 MEPCE Zornitza Stark gene: MEPCE was added
gene: MEPCE was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: MEPCE was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MEPCE were set to 31467394
Phenotypes for gene: MEPCE were set to Intellectual disability; seizures
Review for gene: MEPCE was set to RED
Added comment: 1 patient with global DD and seizures with de novo MEPCE nonsense variant. mRNA and protein analyses identified nonsense-mediated mRNA decay to underlie the decreased amount of MEPCE in patient fibroblasts followed by LARP7 and 7SK snRNA downregulation and HEXIM1 upregulation. Flavopiridol treatment and ectopic MEPCE protein expression in patient fibroblasts rescued increased expression of six RNAP II-sensitive genes and suggested a possible repressive effect of MEPCE on P-TEFb-dependent transcription of specific genes.
Sources: Literature
Mendeliome v0.287 MACROD2 Zornitza Stark gene: MACROD2 was added
gene: MACROD2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: MACROD2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: MACROD2 were set to 31055587
Phenotypes for gene: MACROD2 were set to intellectual disability; dysmorphic features; microcephaly
Review for gene: MACROD2 was set to RED
Added comment: 1 family with a few affected with microcephaly, ID, dysmorphic features, and polydactyly. Deletion of chromosome 20p12.1 involving the MACROD2 gene was found in several members of the family. qRT-PCR showed higher levels of a MACROD2 mRNA isoform in the individuals carrying the deletion.
Sources: Literature
Mendeliome v0.225 APC2 Zornitza Stark Marked gene: APC2 as ready
Mendeliome v0.225 APC2 Zornitza Stark Gene: apc2 has been classified as Green List (High Evidence).
Mendeliome v0.225 APC2 Zornitza Stark Classified gene: APC2 as Green List (high evidence)
Mendeliome v0.225 APC2 Zornitza Stark Gene: apc2 has been classified as Green List (High Evidence).
Mendeliome v0.224 APC2 Zornitza Stark gene: APC2 was added
gene: APC2 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: APC2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: APC2 were set to 31585108
Phenotypes for gene: APC2 were set to Cortical dysplasia, complex, with other brain malformations 10, MIM#618677
Review for gene: APC2 was set to GREEN
Added comment: 12 individuals from 8 unrelated families; intellectual disability, seizures, cortical dysplasia including posterior to anterior predominant pattern of lissencephaly, heterotopias, paucity of white matter, thin corpus callosum.
Sources: Literature
Mendeliome v0.37 G6PC2 Zornitza Stark Marked gene: G6PC2 as ready
Mendeliome v0.37 G6PC2 Zornitza Stark Gene: g6pc2 has been classified as Red List (Low Evidence).
Mendeliome v0.37 G6PC2 Zornitza Stark Classified gene: G6PC2 as Red List (low evidence)
Mendeliome v0.37 G6PC2 Zornitza Stark Gene: g6pc2 has been classified as Red List (Low Evidence).
Mendeliome v0.36 G6PC2 Zornitza Stark reviewed gene: G6PC2: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: ; Mode of inheritance: None
Mendeliome v0.22 PCLO Zornitza Stark Marked gene: PCLO as ready
Mendeliome v0.22 PCLO Zornitza Stark Gene: pclo has been classified as Amber List (Moderate Evidence).
Mendeliome v0.22 PCLO Zornitza Stark Classified gene: PCLO as Amber List (moderate evidence)
Mendeliome v0.22 PCLO Zornitza Stark Gene: pclo has been classified as Amber List (Moderate Evidence).
Mendeliome v0.0 XPC Zornitza Stark gene: XPC was added
gene: XPC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: XPC was set to Unknown
Mendeliome v0.0 WDPCP Zornitza Stark gene: WDPCP was added
gene: WDPCP was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: WDPCP was set to Unknown
Mendeliome v0.0 TRPC6 Zornitza Stark gene: TRPC6 was added
gene: TRPC6 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRPC6 was set to Unknown
Mendeliome v0.0 TRAPPC9 Zornitza Stark gene: TRAPPC9 was added
gene: TRAPPC9 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRAPPC9 was set to Unknown
Mendeliome v0.0 TRAPPC6B Zornitza Stark gene: TRAPPC6B was added
gene: TRAPPC6B was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRAPPC6B was set to Unknown
Mendeliome v0.0 TRAPPC2 Zornitza Stark gene: TRAPPC2 was added
gene: TRAPPC2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRAPPC2 was set to Unknown
Mendeliome v0.0 TRAPPC12 Zornitza Stark gene: TRAPPC12 was added
gene: TRAPPC12 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRAPPC12 was set to Unknown
Mendeliome v0.0 TRAPPC11 Zornitza Stark gene: TRAPPC11 was added
gene: TRAPPC11 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TRAPPC11 was set to Unknown
Mendeliome v0.0 TPCN2 Zornitza Stark gene: TPCN2 was added
gene: TPCN2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: TPCN2 was set to Unknown
Mendeliome v0.0 SFTPC Zornitza Stark gene: SFTPC was added
gene: SFTPC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: SFTPC was set to Unknown
Mendeliome v0.0 PPCS Zornitza Stark gene: PPCS was added
gene: PPCS was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PPCS was set to Unknown
Mendeliome v0.0 PMPCB Zornitza Stark gene: PMPCB was added
gene: PMPCB was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PMPCB was set to Unknown
Mendeliome v0.0 PMPCA Zornitza Stark gene: PMPCA was added
gene: PMPCA was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PMPCA was set to Unknown
Mendeliome v0.0 PCYT2 Zornitza Stark gene: PCYT2 was added
gene: PCYT2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCYT2 was set to Unknown
Mendeliome v0.0 PCYT1A Zornitza Stark gene: PCYT1A was added
gene: PCYT1A was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCYT1A was set to Unknown
Mendeliome v0.0 PCSK1 Zornitza Stark gene: PCSK1 was added
gene: PCSK1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCSK1 was set to Unknown
Mendeliome v0.0 PCNT Zornitza Stark gene: PCNT was added
gene: PCNT was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCNT was set to Unknown
Mendeliome v0.0 PCLO Zornitza Stark gene: PCLO was added
gene: PCLO was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCLO was set to Unknown
Mendeliome v0.0 PCK2 Zornitza Stark gene: PCK2 was added
gene: PCK2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCK2 was set to Unknown
Mendeliome v0.0 PCK1 Zornitza Stark gene: PCK1 was added
gene: PCK1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCK1 was set to Unknown
Mendeliome v0.0 PCGF2 Zornitza Stark gene: PCGF2 was added
gene: PCGF2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCGF2 was set to Unknown
Mendeliome v0.0 PCDH19 Zornitza Stark gene: PCDH19 was added
gene: PCDH19 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCDH19 was set to Unknown
Mendeliome v0.0 PCDH15 Zornitza Stark gene: PCDH15 was added
gene: PCDH15 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCDH15 was set to Unknown
Mendeliome v0.0 PCDH12 Zornitza Stark gene: PCDH12 was added
gene: PCDH12 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCDH12 was set to Unknown
Mendeliome v0.0 PCDH10 Zornitza Stark gene: PCDH10 was added
gene: PCDH10 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCDH10 was set to Unknown
Mendeliome v0.0 PCCB Zornitza Stark gene: PCCB was added
gene: PCCB was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCCB was set to Unknown
Mendeliome v0.0 PCCA Zornitza Stark gene: PCCA was added
gene: PCCA was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCCA was set to Unknown
Mendeliome v0.0 PCBD1 Zornitza Stark gene: PCBD1 was added
gene: PCBD1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PCBD1 was set to Unknown
Mendeliome v0.0 PC Zornitza Stark gene: PC was added
gene: PC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: PC was set to Unknown
Mendeliome v0.0 OPCML Zornitza Stark gene: OPCML was added
gene: OPCML was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: OPCML was set to Unknown
Mendeliome v0.0 NPPC Zornitza Stark gene: NPPC was added
gene: NPPC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: NPPC was set to Unknown
Mendeliome v0.0 MYBPC1 Zornitza Stark gene: MYBPC1 was added
gene: MYBPC1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: MYBPC1 was set to Unknown
Mendeliome v0.0 MPC1 Zornitza Stark gene: MPC1 was added
gene: MPC1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: MPC1 was set to Unknown
Mendeliome v0.0 LIPC Zornitza Stark gene: LIPC was added
gene: LIPC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: LIPC was set to Unknown
Mendeliome v0.0 HPCA Zornitza Stark gene: HPCA was added
gene: HPCA was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: HPCA was set to Unknown
Mendeliome v0.0 GYPC Zornitza Stark gene: GYPC was added
gene: GYPC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: GYPC was set to Unknown
Mendeliome v0.0 GPC6 Zornitza Stark gene: GPC6 was added
gene: GPC6 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: GPC6 was set to Unknown
Mendeliome v0.0 GPC4 Zornitza Stark gene: GPC4 was added
gene: GPC4 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: GPC4 was set to Unknown
Mendeliome v0.0 GPC3 Zornitza Stark gene: GPC3 was added
gene: GPC3 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: GPC3 was set to Unknown
Mendeliome v0.0 GIPC3 Zornitza Stark gene: GIPC3 was added
gene: GIPC3 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: GIPC3 was set to Unknown
Mendeliome v0.0 G6PC3 Zornitza Stark gene: G6PC3 was added
gene: G6PC3 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: G6PC3 was set to Unknown
Mendeliome v0.0 G6PC2 Zornitza Stark gene: G6PC2 was added
gene: G6PC2 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: G6PC2 was set to Unknown
Mendeliome v0.0 G6PC Zornitza Stark gene: G6PC was added
gene: G6PC was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: G6PC was set to Unknown
Mendeliome v0.0 EPCAM Zornitza Stark gene: EPCAM was added
gene: EPCAM was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: EPCAM was set to Unknown
Mendeliome v0.0 ARPC1B Zornitza Stark gene: ARPC1B was added
gene: ARPC1B was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: ARPC1B was set to Unknown
Mendeliome v0.0 APCDD1 Zornitza Stark gene: APCDD1 was added
gene: APCDD1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: APCDD1 was set to Unknown