| Date | Panel | Item | Activity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mendeliome v1.2479 | USP25 |
Sangavi Sivagnanasundram edited their review of gene: USP25: Added comment: This gene-disease association has been DISPUTED by ClinGen Epilepsy GCEP on 01/04/2025 - https://search.clinicalgenome.org/CCID:008786 ClinGen's reason for disuputed classification - "Case-level data was not considered strong enough to score. Functional data was not consistent among the variants and was difficult to interpret in relationship to a seizure phenotype. The knock-out mouse model did not exhibit spontaneous seizures so was not scored." Downgrade to Amber due to the uncertainty was agreed within the user group.; Changed rating: AMBER; Changed phenotypes: USP25-related epilepsy (epilepsy MONDO:0005027) |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2429 | CDKL2 |
Sarah Milton gene: CDKL2 was added gene: CDKL2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CDKL2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CDKL2 were set to PMID: 40088891 Phenotypes for gene: CDKL2 were set to Neurodevelopmental disorder, MONDO:0700092, CDKL2-related Mode of pathogenicity for gene: CDKL2 was set to Other Review for gene: CDKL2 was set to AMBER Added comment: CDKL2 encodes a cyclin dependent kinase of which there are CDKL1-5 in humans. (CDKL5 has been associated with a neurodevelopmental disorder previously.) Bereshneh et al describe 5 individuals with a neurodevelopmental disorder with de novo variants in CDKL2. 3 variants were missense, 1 was an in frame single amino acid deletion. 2 of the individuals described were monozygotic twins who were born at 30/40 and also had PVL on neuroimaging. Phenotype included GDD (5/5) - severity not described, speech impairment (5/5), motor impairment (4/5), epilepsy (3/5), ID (3/5), IUGR (3/5), poor growth postnatally (3/5), GI/feeding issues (3/5), tone abnormality (3/5) Missense variants were located in the kinase domain and dominant negative mechanism was postulated based on drosophilia studies. Functional studies in drosphilia showed variants seen in probands did not completely rescue a loss of function model, as well as this, overexpression of transcripts containing the variants resulted in a more severe phenotype suggesting dominant negative. Authors also noted the larger than expected number of LOF variants in gnomad for the disease to be caused by this mechanism. Sources: Literature Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2295 | ARHGEF40 |
Chirag Patel gene: ARHGEF40 was added gene: ARHGEF40 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ARHGEF40 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ARHGEF40 were set to PMID: 39838643 Phenotypes for gene: ARHGEF40 were set to Neurodevelopmental disorder MONDO:0700092 Review for gene: ARHGEF40 was set to RED Added comment: 2 individuals with global developmental delay, hypotonia, short stature, hearing impairment, nystagmus, feeding issues, and dysmorphism (bifid uvula, narrow mouth, high palate, micrognathia). Trio clinical whole exome sequencing identified de novo variants in the ARHGEF40 gene at position p.Arg225, which is fully conserved in mammals and located within the n-terminal keratin binding region (p.Arg225Trp and p.Arg225Gln). Of note, multiple additional probands with rare missense variants at the p.Arg225 residue have been identified by the same laboratory (but there was no consent for publication, providing further evidence of the importance of this residue. The ARHGEF40 gene (aka SOLO) is a member of the Rho guanine nucleotide exchange factor (Rho-GEF) family of proteins, which stimulate Rho signal transduction molecules by converting them from inactive GDP-bound form to the active GTP-bound state. No functional studies to characterise disease-gene relationship or disease mechanism. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2266 | LMNB1 | Zornitza Stark Phenotypes for gene: LMNB1 were changed from Microcephaly 26, primary, autosomal dominant, MIM# 619179; Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 to Microcephaly 26, primary, autosomal dominant, MIM# 619179; Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM# 169500; Leukodystrophy, demyelinating, adult-onset, autosomal dominan, atypical, MIM#621061 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2265 | LMNB1 | Zornitza Stark edited their review of gene: LMNB1: Changed phenotypes: Microcephaly 26, primary, autosomal dominant, MIM# 619179, Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis, Leukodystrophy, adult-onset, autosomal dominant, MIM# 169500, Leukodystrophy, demyelinating, adult-onset, autosomal dominan, atypical, MIM#621061 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2135 | PLA2G4A | Sangavi Sivagnanasundram reviewed gene: PLA2G4A: Rating: GREEN; Mode of pathogenicity: None; Publications: 18451993, 23268370, 25102815; Phenotypes: cytosolic phospholipase-A2 alpha deficiency associated bleeding disorder MONDO:0018794; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2090 | EPHB2 | Sangavi Sivagnanasundram reviewed gene: EPHB2: Rating: AMBER; Mode of pathogenicity: None; Publications: https://search.clinicalgenome.org/CCID:008367; Phenotypes: bleeding disorder, platelet-type, 22 MONDO:0032765; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2063 | DHRSX |
Achchuthan Shanmugasundram gene: DHRSX was added gene: DHRSX was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DHRSX was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DHRSX were set to 38821050 Phenotypes for gene: DHRSX were set to congenital disorder of glycosylation, MONDO:0015286 Review for gene: DHRSX was set to GREEN Added comment: PMID:38821050 reported the identification of biallelic missense variants in DHRSX gene in four patients from three unrelated families with a congenital disorder of glycosylation. They displayed distinct facial features, severe neurological involvement including hypotonia, scoliosis, contractures, profound intellectual disability, epilepsy, and sensorineural hearing loss. These patients also experienced severe failure to thrive (requiring tube feeding); variable respiratory insufficiency; and involvement of the eyes, the gastrointestinal system, and other organs. This gene has not yet been associated with any relevant phenotypes in OMIM or in Gene2Phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.2022 | PSKH1 |
Zornitza Stark gene: PSKH1 was added gene: PSKH1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PSKH1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PSKH1 were set to 39132680 Phenotypes for gene: PSKH1 were set to Cholestasis, progressive familial intrahepatic, 13, MIM# 620962 Review for gene: PSKH1 was set to GREEN Added comment: 4 consanguineous families (out of 279 families) with intrahepatic cholestasis: -1 patient died at 10mths with cholestasis/liver impairment and kidney impairment -3 cousins with cholestasis (2 with liver failure needing transplant) and kidney features (2 with kidney failure, 1 with renal echogenicity) -2 siblings with hepatic fibrosis (1 with unilateral renal agenesis) -2 siblings with unexplained liver cirrhosis (1 needing transplant) but normal kidney function WES identified 3 different homozygous variants in PSKH1 (Arg121Trp, Ile126Val, Arg183Cys). Patient fibroblasts displayed abnormal cilia that are long and show abnormal transport. A homozygous Pskh1 mutant mouse faithfully recapitulated the human phenotype and displayed abnormally long cilia. The phenotype could be rationalized by the loss of catalytic activity observed for each recombinant PSKH1 variant using in vitro kinase assays. Human PSKH1 is a poorly understood gene that may play important role in intracellular trafficking, is sensitive to intracellular Ca2+ concentration, and is localized to centrosomes, suggesting a link to cystogenesis. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1980 | PNPLA8 |
Chirag Patel edited their review of gene: PNPLA8: Added comment: Cohort analysis of clinical features of new and previously reported individuals with biallelic PNPLA8 variants (25 affected individuals across 20 families). They showed that PNPLA8-related neurological diseases manifest as a continuum ranging from variable developmental and/or degenerative epileptic-dyskinetic encephalopathy to childhood-onset neurodegeneration. Complete loss of PNPLA8 was associated with the more profound end of the spectrum. Using cerebral organoids generated from human induced pluripotent stem cells, they found that loss of PNPLA8 led to developmental defects by reducing the number of basal radial glial cells and upper-layer neurons. Neural progenitor cells lacking PNPLA8 showed a reduced amount of lysophosphatidic acid, lysophosphatidylethanolamine and phosphatidic acid. They show that PNPLA8 is crucial to meet phospholipid synthetic needs and to produce abundant basal radial glial cells in human brain development.; Set current diagnostic: yes |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1816 | ATXN7L3 |
Chirag Patel gene: ATXN7L3 was added gene: ATXN7L3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ATXN7L3 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ATXN7L3 were set to PMID: 38753057 Phenotypes for gene: ATXN7L3 were set to Neurodevelopmental disorder, MONDO_0100500 Review for gene: ATXN7L3 was set to GREEN gene: ATXN7L3 was marked as current diagnostic Added comment: This study reports 9 unrelated individuals with de novo heterozygous variants in ATXN7L3 identified through WES testing and GeneMatcher. Core clinical features included: global motor and language developmental delay, hypotonia, and dysmorphic features (hypertelorism, epicanthal folds, blepharoptosis, small nose, small mouth, and low-set posteriorly rotated ears). Variable features included: feeding difficulties, seizures, mild periventricular leukomalacia, and structural cardiac abnormalities. A recurrent nonsense variant [p.(Arg114Ter)] was found in 5/9 individuals. The other variants were 1 frameshift [p.(Ser112LysfsTer12)] and 3 missense variants [p.(Ile71Thr), p.(Ser92Arg), and p.(Leu106Pro)]. They investigated the effects of the recurrent nonsense variant [p.(Arg114Ter)] in fibroblasts of an affected individual. ATXN7L3 protein levels were reduced, and deubiquitylation was impaired (as indicated by an increase in histone H2Bub1 levels). This is consistent with the previous observation of increased H2Bub1 levels in Atxn7l3-null mouse embryos, which have developmental delay and embryonic lethality. Pathogenic variants in deubiquitinating enzymes (DUBs) have been implicated in neurodevelopmental disorders (ND) and congenital abnormalities. ATXN7L3 is a component of the DUB module of the SAGA complex, and two other related DUB modules, and serves as an obligate adaptor protein of 3 ubiquitin-specific proteases (USP22, USP27X or USP51). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1687 | PURA | Ain Roesley Phenotypes for gene: PURA were changed from Mental retardation, autosomal dominant 31, MIM# 616158 to Neurodevelopmental disorder with neonatal respiratory insufficiency, hypotonia, and feeding difficulties (OMIM 616158) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1674 | SEPHS1 |
Zornitza Stark gene: SEPHS1 was added gene: SEPHS1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SEPHS1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SEPHS1 were set to 38531365 Phenotypes for gene: SEPHS1 were set to Neurodevelopmental disorder, MONDO:0700092, SEPHS1-related Review for gene: SEPHS1 was set to GREEN Added comment: Nine individuals from eight families with developmental delay, growth and feeding problems, hypotonia, and dysmorphic features, all with heterozygous missense variants in SEPHS1. Eight of these individuals had a recurrent variant at amino acid position 371 of SEPHS1 (p.Arg371Trp, p.Arg371Gln, and p.Arg371Gly); seven of these variants were known to be de novo. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1587 | APOLD1 |
Lucy Spencer changed review comment from: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. Sources: Literature; to: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. SiRNA silencing of APOLD1 in HBDEC cells resulted in altered cell shape and size, and were associated with endothelial cell junction dismantling. These cells were also almost devoid of VWF. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1584 | APOLD1 |
Lucy Spencer gene: APOLD1 was added gene: APOLD1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: APOLD1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: APOLD1 were set to 35638551 Phenotypes for gene: APOLD1 were set to Bleeding disorder, vascular-type (MIM#620715) Review for gene: APOLD1 was set to AMBER Added comment: PMID: 35638551 1 family with an atypical inherited bleeding disorder characterised by severe spontaneous bleeding episodes in childhood and microcirculatory problems. 4 affected individuals across 2 generations have R49*in APOLD1, another affected individual from a third generation was not able to be sequenced = 4 meiosis. 4 unaffected individuals did not have the variant. This gene has no NMD region, R49* would affect 82% of the protein. Paper is not using the MANE select transcript, alt p. in MANE select is R18* which affects 92% of the MANE select protein Interestingly R49* is created by a delins/2 missense in cis, 1 common R49Q and 1 rare R49W, some UNaffected family members just have the common missense without the other in cis. Immunofluorescence studies in patient platelets showed a 50% reduction of APOLD1 and disrupted cytoskeletal and junctional organization. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1318 | ZFHX3 | Zornitza Stark edited their review of gene: ZFHX3: Added comment: 41 individuals with protein truncating variants (PTVs) or (partial) deletions of ZFHX3. Presentations included (mild) ID and/or behavioural problems, postnatal growth retardation, feeding difficulties, dysmorphism (rarely cleft palate). Nuclear abundance of ZFHX3 increases during human brain development and neuronal differentiation in neural stem cells and SH-SY5Y cells, ZFHX3 interacts with the chromatin remodelling BRG1/Brm-associated factor complex and the cleavage and polyadenylation complex. ZFHX3 haploinsufficiency associates with a specific DNA methylation profile in leukocyte-derived DNA, and participates in chromatin remodelling and mRNA processing.; Changed publications: 37292950; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, ZFHX3-related | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1127 | TPM4 | Zornitza Stark Phenotypes for gene: TPM4 were changed from Macrothrombocytopaenia to Bleeding disorder, platelet-type, 25, MIM# 620486 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.1126 | TPM4 | Zornitza Stark edited their review of gene: TPM4: Changed phenotypes: Bleeding disorder, platelet-type, 25, MIM# 620486 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.956 | RPH3A |
Lucy Spencer gene: RPH3A was added gene: RPH3A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RPH3A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RPH3A were set to 37403762; 29441694 Phenotypes for gene: RPH3A were set to Neurodevelopmental disorder (MONDO#0700092), RPH3A-related Review for gene: RPH3A was set to GREEN Added comment: PMID: 37403762- 6 patients with RPH3A variant. All 6 have ID, 4 have epilepsy, 2 with obesity, 1 with dysmorphic features. All 6 have missense variants, 3 shown to be de novo, the other 3 parents were not available for testing. I patient also had language and motor impairment, breathing issues and mixed hypo/hypertonia- he also had variants in CUL4B, PRKAG2, SCN4A, none of these genes cause seizures (which he had). Patch clamp studies on 2 of the missense showed they increased either the number of NMDA receptors on neuron membrane surface or increased their conductance. Study suggests that the variants interrupt the normal role of RPH3A activity at the synaptic NMDAR complex which is needed for the induction of synaptic plasticity and NMDAR-dependant behaviours Previously this gene was reported in PMID: 29441694- 1 girl with learning disabilities, tremors, ataxia, hyperglycemia and muscle fatigability. Chet for 2 RPH3A missense. Functional analysis showed strong and marginal impairment of protein binding for each variant. this is the only biallelic report currently. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.898 | POU3F2 |
Sarah Pantaleo gene: POU3F2 was added gene: POU3F2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: POU3F2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: POU3F2 were set to PMID: 37207645 Phenotypes for gene: POU3F2 were set to Autism spectrum disorder, NDD, and adolescent-onset obesity Penetrance for gene: POU3F2 were set to unknown Mode of pathogenicity for gene: POU3F2 was set to Other Review for gene: POU3F2 was set to GREEN Added comment: We associate ultra-rare variants in POU3F2, encoding a central nervous system transcription factor, with syndromic obesity and neurodevelopment delay in 12 individuals. Demonstrate variant pathogenicity through in vitro analysis. Used exome sequencing, GeneMatcher and Genomics England 100,000 Genomes Project rare disease database. Both truncating and missense variants in over 10 individuals sharing autism spectrum disorder, NDD, and adolescent-onset obesity (may have had other features eg. CAKUT in 2 individuals, diabetes in two) . Affected individuals presented with low-to-normal birth weight and infantile feeding difficulties but developed insulin resistance and hyperplasia during childhood. With the exception of an early truncating variant, the variants showed adequate nuclear translocation but overall disturbed DNA-binding ability and promoter activation. Variants absent from population and clinical databases. Almost all constituted putatively non-inherited de novo variants (8/10). Functional studies provide evidence for loss of function in eight and gain of function in one obesity-associated POU3F2 variant. One variant did not impact POU3F2-promoter activation, leaving the possibility for further path-mechanisms. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.837 | MRPL39 |
Lilian Downie changed review comment from: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature; to: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.834 | MRPL39 |
Lilian Downie changed review comment from: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (MIM 256000) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature; to: AR 3 unrelated individuals, confirmed variants in trans Functional studies on patient fibroblasts Multisystem disease, variable onset 2x infants with a clinical diagnosis of Leigh syndrome (congestive cardiac failure, increased lactates, seizures, apnea, poor feeding, and global developmental delay, leading to early death (< 1 year of age)) Adult with hypertrophic cardiomyopathy, lactic acidosis, ADHD Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.774 | DOCK11 |
Lucy Spencer gene: DOCK11 was added gene: DOCK11 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DOCK11 was set to X-LINKED: hemizygous mutation in males, biallelic mutations in females Publications for gene: DOCK11 were set to 36952639 Phenotypes for gene: DOCK11 were set to autoimmune disease MONDO:0007179, DOCK11-related Review for gene: DOCK11 was set to GREEN Added comment: 8 male patients from 7 unrelated families all with hemizygous DOCK11 missense variants. 6 mothers were tested and found to carry the same missense. Early onset autoimmuniy with cytopenia, systemic lupus erythematosus, and skin and digestive manifestations. Patients platelets had abnormal morphology and spreading as well as impaired CDC42 activity. In vitro activated T cells and B lymphoblastoid cell lines (B-LCL) of patients exhibited aberrant protrusions and abnormal migration speed in confined channels concomitant with altered actin polymerization during migration. A DOCK11 knock-down recapitulated these abnormal cellular phenotypes in monocytes-derived dendritic cells (MDDC) and primary activated T cells from healthy controls. 6 of the variants are either absent or have only 1 het in gnomad v2, but one of them has 2 hemis and 1 het. The patient with this variant R1885C does seem to be more mild. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.554 | SETD2 |
Zornitza Stark edited their review of gene: SETD2: Added comment: PMID 32710489: 12 unrelated patients, ranging from 1 month to 12 years of age, with a multisystemic neurodevelopmental disorder associated with a specific de novo heterozygous mutation in the SETD2 gene (R1740W). Key clinical features: severely impaired global development apparent from infancy, feeding difficulties with failure to thrive, small head circumference, and dysmorphic facial features. Affected individuals have impaired intellectual development and hypotonia; they do not achieve walking or meaningful speech. Other neurologic findings may include seizures, hearing loss, ophthalmologic defects, and brain imaging abnormalities. There is variable involvement of other organ systems, including skeletal, genitourinary, cardiac, and possibly endocrine. Further 3 unrelated patients identified with mild to moderately impaired intellectual development associated with a specific de novo heterozygous mutation in the SETD2 gene (R1740Q). These are distinct clinically from Luscan-Lumish syndrome, which is characterised by overgrowth.; Changed publications: 29681085, 32710489; Changed phenotypes: Luscan-Lumish syndrome, MIM#616831, Rabin-Pappas syndrome,MIM# 620155, Intellectual developmental disorder, autosomal dominant 70, MIM# 620157 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.384 | DPH5 |
Zornitza Stark gene: DPH5 was added gene: DPH5 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: DPH5 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: DPH5 were set to 35482014 Phenotypes for gene: DPH5 were set to Neurodevelopmental disorder with short stature, prominent forehead, and feeding difficulties, MIM# 620070 Review for gene: DPH5 was set to GREEN Added comment: 5 individuals from 3 unrelated families reported with severe ID, feeding difficulties, dysmorphic features and congenital anomalies, though there was no consistent pattern to these. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.354 | NAPB |
Paul De Fazio gene: NAPB was added gene: NAPB was added to Mendeliome. Sources: Literature Mode of inheritance for gene: NAPB was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: NAPB were set to 26235277; 28097321; 33189936 Phenotypes for gene: NAPB were set to Developmental and epileptic encephalopathy 107 MIM#620033 Review for gene: NAPB was set to GREEN gene: NAPB was marked as current diagnostic Added comment: PMID 26235277: homozygous nonsense variant identified in a 6 year old girl by trio WES with early-onset epileptic encephalopathy characterised by multifocal seizures and profound GDD PMID 28097321: exome sequencing in 152 consanguineous families with at least one member affected with ID. Homozygous nonsense variant identified in a patient with profound ID, seizures, feeding difficulties in infancy, muscularhypotonia, microcephaly, and impaired vision PMID 33189936: homozygous canonical splice variant identified by trio exome sequencing in two siblings with seizures, intellectual disability and global developmental delay, microcephaly (<-3SD), and muscular hypotonia. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.323 | NODAL |
Zornitza Stark edited their review of gene: NODAL: Added comment: NODAL is a good biological candidate for heterotaxy disorders, and this is supported by animal models. The gene is depleted for LoF variants in gnomad. The missense variants reported in PMIDs 9354794 and 19064609 are present at a high population frequency in gnomad, including some in homozygous case: their association with disease is DISPUTED. A total of at least 7 families reported with severe CHD and high impact variants (stop gain, frameshift and canonical splice site). However, almost invariably these were inherited from unaffected or questionably affected parents (e.g. self reports of heart murmur in childhood), raising questions about whether these variants contribute to disease under a monogenic or polygenic model and/or about penetrance. Discussed at GenCC on 13/9/2022 and agreed on MODERATE assessment.; Changed rating: AMBER; Changed publications: 9354794, 19064609, 29368431, 19933292, 11311163, 30293987 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.155 | KMT2B | Zornitza Stark edited their review of gene: KMT2B: Added comment: Nine individuals reported in PMID 33150406 with heterozygous variants in this gene and intellectual disability, speech delay, microcephaly, growth delay, feeding problems, and dysmorphic features, including epicanthic folds, posteriorly rotated ears, syndactyly/clinodactyly of toes, and fifth finger clinodactyly, normal MRIs and NO dystonia.; Changed publications: 27839873, 27992417, 33150406; Changed phenotypes: Dystonia 28, childhood-onset 617284, MONDO:0015004, Intellectual developmental disorder, autosomal dominant 68, MIM# 619934 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.119 | TAF8 |
Zornitza Stark changed review comment from: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. This is likely to be a founder variant. One family with different compound heterozygous variants. Sources: Literature; to: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. Unclear if this is a founder variant, families of different ethnicities. One family with different compound heterozygous variants. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v1.118 | TAF8 |
Zornitza Stark gene: TAF8 was added gene: TAF8 was added to Mendeliome. Sources: Literature founder tags were added to gene: TAF8. Mode of inheritance for gene: TAF8 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: TAF8 were set to 29648665; 35759269 Phenotypes for gene: TAF8 were set to Neurodevelopmental disorder, MONDO:0700092, TAF8-related Review for gene: TAF8 was set to GREEN Added comment: 8 individuals reported from 5 families, four of which were consanguineous. Clinical features included severe psychomotor retardation with almost absent development, feeding problems, microcephaly, growth retardation, spasticity and epilepsy. Six had the c.781-1G > A variant in homozygous state. This is likely to be a founder variant. One family with different compound heterozygous variants. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14138 | RASGRP2 | Zornitza Stark Phenotypes for gene: RASGRP2 were changed from to Bleeding disorder, platelet-type, 18 (MIM#615888) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14135 | RASGRP2 | Crystle Lee reviewed gene: RASGRP2: Rating: GREEN; Mode of pathogenicity: None; Publications: 28762304, 27663674, 28637664, 27235135; Phenotypes: Bleeding disorder, platelet-type, 18 (MIM#615888); Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14081 | FLI1 | Bryony Thompson Phenotypes for gene: FLI1 were changed from to Bleeding disorder, platelet-type, 21 MONDO:0054577 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.14078 | FLI1 | Bryony Thompson reviewed gene: FLI1: Rating: GREEN; Mode of pathogenicity: None; Publications: 10891501, 10981960, 24100448, 28255014, 26316623; Phenotypes: Bleeding disorder, platelet-type, 21 MONDO:0054577; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.12910 | F12 | Bryony Thompson commented on gene: F12: Also associated with FXII deficiency - PMID: 29383625, 20022356, 18024408, 20386432, 26709783, 21264442, 28007010, 15205584, 30700128 - Biallalelic loss-of-function variants are a well-established cause of FXII deficiency. FXII deficiency is not associated with bleeding risk unlike other coagulation factors, it is either asymptomatic or characterized by a prolonged activated partial thromboplastin time. DEFINITIVE gene-disease validity classification by the ClinGen Hemostasis Thrombosis VCEP, Classification - 01/22/2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11209 | NACC1 | Zornitza Stark Phenotypes for gene: NACC1 were changed from to Neurodevelopmental disorder with epilepsy, cataracts, feeding difficulties, and delayed brain myelination - MIM#617393 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.11189 | NACC1 | Krithika Murali reviewed gene: NACC1: Rating: GREEN; Mode of pathogenicity: None; Publications: 28132692; Phenotypes: Neurodevelopmental disorder with epilepsy, cataracts, feeding difficulties, and delayed brain myelination - MIM#617393; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10680 | OTUD6B | Zornitza Stark changed review comment from: IDDFSDA is a severe multisystem disorder characterized by global developmental delay, microcephaly, absent speech, hypotonia, growth retardation with prenatal onset, feeding difficulties, structural brain abnormalities, congenital malformations including congenital heart disease, and musculoskeletal features. In 2017, 12 patients from 6 unrelated families with IDDFSDA identified with 4 homozygous mutations in the OTUD6B gene (WES and Sanger, and segregated with the disorder in the families). Other cases reported since. Suitable for fetal anomalies panel.; to: IDDFSDA is a severe multisystem disorder characterized by global developmental delay, microcephaly, absent speech, hypotonia, growth retardation with prenatal onset, feeding difficulties, structural brain abnormalities, congenital malformations including congenital heart disease, and musculoskeletal features. In 2017, 12 patients from 6 unrelated families with IDDFSDA identified with 4 homozygous mutations in the OTUD6B gene (WES and Sanger, and segregated with the disorder in the families). Other cases reported since. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10558 | RPL10L | Alison Yeung Added comment: Comment on list classification: heterozygous variants in three unrelated patients presenting with azoospermia. Given the common phenotype, need a few more cases to convert to green list. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.10026 | ATP5A1 | Naomi Baker reviewed gene: ATP5A1: Rating: AMBER; Mode of pathogenicity: None; Publications: PMID: 34483339; Phenotypes: feeding intolerance, failure to thrive, hyperammonemia, lactic acidemia; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9776 | NEBL | Bryony Thompson Added comment: Comment on list classification: Limited gene-disease vailidity, Classification - 09/25/2020 by ClinGen Dilated Cardiomyopathy GCEP. Evidence Summary: NEBL was evaluated for autosomal dominant dilated cardiomyopathy (DCM). Human genetic evidence supporting this gene-disease relationship includes case-level data. Arimura and colleagues (2000, PMID: 11140941) analyzed 83 DCM patients and 311 healthy controls, identifying 4 missense variants of unknown significance (VUSs) in 4 DCM cases. High minor allele frequencies (MAFs) and lack of segregation excluded these variants as evidence. Purevjav and colleagues (2010, PMID: 20951326) investigated a total of 260 DCM patients and 300 unrelated ethnic matched controls by direct DNA sequencing. Authors identified 4 missense VUSs. One of these variants (Q128R) was downgraded in level of evidence due to the lack of segregation. The other 3 variants were not scored because of their MAF. Perrot and colleagues (2016, PMID: 27186169) investigated a total of 389 patients with DCM, HCM, or LVNC, 320 Caucasian sex-matched controls and 192 Caucasian sex-matched blood donors and identified 3 missense VUSs in 4 families. One of these variants was also carried by healthy relatives and therefore was excluded, however this may be explained by reduced penetrance. The 2 other variants lacked segregation as well and therefore were also excluded. In addition, this gene-disease association is supported by animal models. Mastronotaro and colleagues (2015, PMID: 25987543) created a NEBL knockout mice that exhibited normal cardiac function up to 9 months of age but after 2 weeks of transaortic constriction (TAC), these mice showed Z-line widening since the age of 5 months and upregulation of cardiac stress genes (basal and after TAC) However, absence of clinical DCM features in KO-NEBL mice as well as Western Blot analysis which contradicted previous findings by showing a similar protein expression between knockout and wild-type mice, excluding it as evidence. Purevjav and colleagues (2010, PMID: 20951326) generated a transgenic mouse overexpressing WT or mutant NEBL under the control of the α-MyHC promoter (4 variants were tested). Mice overexpressing p.K60N or p.Q128R variants died within 1 year because of severe heart enlargement and heart failure. Mice overexpressing p.G202R or p.A592E were born and developed normally but after 6 months displayed reduced stress tolerance, cardiac enlargement due to left ventricle dilation, myocyte disarray, and interstitial cell infiltration. In summary, there is limited evidence to support this gene-disease relationship. More evidence is needed to support the relationship of NEBL and autosomal dominant DCM. This classification was approved by the ClinGen Dilated Cardiomyopathy Working Group on October 11, 2019 (SOP Version 7). Gene Clinical Validity Standard Operating Procedures (SOP) - SOP7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9704 | EFHC1 | Bryony Thompson Added comment: Comment on list classification: ClinGen Epilepsy GCEP gene-disease association curation: Disputed - We have disregarded the very limited functional evidence in light of the complete lack of genetic evidence connecting EFHC1 and epilepsy. In summary, there is convincing evidence disputing the association between EFHC1 and epilepsy. All variants in EFHC1 associated with epilepsy have contradictory evidence for disease association (too common in ExAC/gnomAD, with minor allele frequencies (MAF) of 2.857e-5 to 0.05973). More evidence is needed to either support or refute the role EFHC1 plays in this disease. Classification - 07/27/2018, reviewed Sept 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9631 | ASXL1 |
Zornitza Stark changed review comment from: Bohring-Opitz syndrome is a malformation syndrome characterized by severe intrauterine growth retardation, poor feeding, profound ID, trigonocephaly, prominent metopic suture, exophthalmos, nevus flammeus of the face, upslanting palpebral fissures, hirsutism, and flexion of the elbows and wrists with deviation of the wrists and metacarpophalangeal joints -- many of these features would be identifiable antenatally.; to: Bohring-Opitz syndrome is a malformation syndrome characterized by severe intrauterine growth retardation, poor feeding, profound ID, trigonocephaly, prominent metopic suture, exophthalmos, nevus flammeus of the face, upslanting palpebral fissures, hirsutism, and flexion of the elbows and wrists with deviation of the wrists and metacarpophalangeal joints. Multiple individuals reported. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9131 | LPIN2 | Zornitza Stark Phenotypes for gene: LPIN2 were changed from to Majeed syndrome, MIM# 609628; Chronic recurrent multifocal osteomyelitis with congenital dyserythropoietic anaemia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9128 | LPIN2 | Zornitza Stark reviewed gene: LPIN2: Rating: GREEN; Mode of pathogenicity: None; Publications: 15994876, 33993107, 33670882, 33314777, 31727123; Phenotypes: Majeed syndrome, MIM# 609628, Chronic recurrent multifocal osteomyelitis with congenital dyserythropoietic anaemia; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.9068 | CACNA1I |
Kristin Rigbye gene: CACNA1I was added gene: CACNA1I was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CACNA1I was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CACNA1I were set to 33704440 Phenotypes for gene: CACNA1I were set to Neurodevelopmental disorder Mode of pathogenicity for gene: CACNA1I was set to Other Review for gene: CACNA1I was set to GREEN Added comment: 4 different missense variants identified and shown to result in a gain of function. 2 individuals with de novo variants (a 3rd also suspected de novo but their father was unavailable for testing) - these patients all had severe neurodevelopmental disorders, involving severe global developmental delay, absence of speech, gross motor delay, muscular hypotonia, early-onset seizures, cortical visual impairment, and feeding difficulties. Variable clinical features include various brain malformations, startle response or seizures, postnatal growth retardation, gastroesophageal reflux, and gastrostomy. 1 family had three affected individuals - variable cognitive impairment in all, involving borderline intellectual functioning or mild or moderate intellectual disability as main clinical feature, with late-onset seizures in the mother and speech retardation in one of the children. This variant had a milder functional effect than the variants in sporadic cases. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8889 | ZNF699 |
Zornitza Stark gene: ZNF699 was added gene: ZNF699 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZNF699 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: ZNF699 were set to 33875846 Phenotypes for gene: ZNF699 were set to DEGCAGS syndrome, MIM# 619488 Review for gene: ZNF699 was set to GREEN Added comment: DEGCAGS syndrome is a neurodevelopmental disorder characterized by global developmental delay, coarse and dysmorphic facial features, and poor growth and feeding apparent from infancy. Affected individuals have variable systemic manifestations often with significant structural defects of the cardiovascular, genitourinary, gastrointestinal, and/or skeletal systems. Additional features may include sensorineural hearing loss, hypotonia, anaemia or pancytopaenia, and immunodeficiency with recurrent infections. 12 unrelated families reported, 5 different homozygous frameshift variants. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8861 | IGF2 |
Zornitza Stark changed review comment from: RSS phenotype.; to: Silver-Russell syndrome-3 (SRS3) is characterized by intrauterine growth retardation with relative macrocephaly, followed by feeding difficulties and postnatal growth restriction. Dysmorphic facial features include triangular face, prominent forehead, and low-set ears. Other variable features include limb defects, genitourinary and cardiovascular anomalies, hearing impairment, and developmental delay. Disruption of any gene in the HMGA2-PLAG1-IGF2 pathway results in a decrease in IGF2 expression and produces an SRS phenotype similar to that of patients carrying 11p15.5 epigenetic defects. Begemann et al. (2015) performed exome sequencing in 4 affected people with severe growth restriction in one family, and identified a heterozygous nonsense mutation in the IGF2 gene that segregated fully with the disorder. Affected individuals inherited the mutation from their healthy fathers, and it originated from the healthy paternal grandmother. Clinical features occurred only in those who inherited the variant allele through paternal transmission, consistent with maternal imprinting of IGF2. Many other cases reported since with de novo mutations in IGF2 present on the paternal allele. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8853 | PLAG1 |
Zornitza Stark edited their review of gene: PLAG1: Added comment: Additional families reported, upgrade to Green. Silver-Russell syndrome-4 (SRS4) is characterised by intrauterine growth retardation followed by feeding difficulties and postnatal growth restriction. Dysmorphic facial features include triangular face and prominent forehead, and relative macrocephaly at birth may be observed. So far 4 families have been reported with some functional studies of the role of the gene in the growth pathway. Abi Habib et al. (2018) reported 1 family (child, sister and mother) patient with Silver-Russell syndrome (with normal methylation on chromosomes 7, 11, and 14, and exclusion of maternal UPD and chromosomal rearrangements). Using WES they identified a heterozygous 1-bp deletion in the PLAG1 gene. The variant segregated with disease, and was not present in polymorphism databases or ExAC. They also reported another patient with a different heterozygous 1-bp deletion in the PLAG1 gene. This was not found in her unaffected twin brother, older brother, or parents. Experiments in Hep3b cells demonstrated that PLAG1 positively regulates expression of the IGF2 promoter P3, independently and via the HMGA2-PLAG1-IGF2 pathway. Disruption of any gene in the pathway results in a decrease in IGF2 expression and produces an SRS phenotype similar to that of patients carrying 11p15.5 epigenetic defects (SRS1; 180860), except for body asymmetry, which is not expected to occur since the molecular defects are present in all cells of the body, unlike the mosaic epigenetic changes at the 11p15.5 locus. Inoue et al. (2020) reported 1 family with 2 affected people with Silver-Russell syndrome with a nonsense variant in the PLAG1 gene, which segregated with disease. Vado et al. (2020) reported 1 family with multiple affected people with Silver-Russell syndrome with a frameshift variant in the PLAG1 gene, which segregated with disease.; Changed rating: GREEN; Changed publications: 28796236, 29913240, 33291420, 32546215 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8851 | WIPF1 | Zornitza Stark Phenotypes for gene: WIPF1 were changed from to Wiskott-Aldrich syndrome 2 MIM# 614493; Reduced T cells; defective lymphocyte responses to anti-CD3; high IgE; Thrombocytopenia with or without small platelets; recurrent bacterial and viral Infections; eczema; bloody diarrhoea; gastrointestinal bleeding; WAS protein absent | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8836 | WIPF1 | Danielle Ariti reviewed gene: WIPF1: Rating: GREEN; Mode of pathogenicity: None; Publications: 22231303, 27742395, 11869681, 14757742; Phenotypes: Wiskott-Aldrich syndrome 2 MIM# 614493, Reduced T cells, defective lymphocyte responses to anti-CD3, high IgE, Thrombocytopenia with or without small platelets, recurrent bacterial and viral Infections, eczema, bloody diarrhoea, gastrointestinal bleeding, WAS protein absent; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8823 | SLC51A |
Zornitza Stark gene: SLC51A was added gene: SLC51A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: SLC51A was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SLC51A were set to 31863603 Phenotypes for gene: SLC51A were set to Cholestasis, progressive familial intrahepatic, 6, MIM# 619484 Review for gene: SLC51A was set to RED Added comment: Single individual reported with homozygous LoF variant, who presented with chronic malabsorptive diarrhoea, easy bruising, episodes of prolonged bleeding that required blood transfusions, and failure to thrive. Laboratory testing at age 2.5 years showed elevated liver transaminases and alkaline phosphatase. Liver biopsy demonstrated portal and periportal fibrosis and hepatocytes with foci of hepatocytic cholestasis. Analysis of bile acids in a blood spot were normal. Treatment with ursodiol and cholestyramine was started at 5 years of age. The coagulopathy resolved and his growth was adequate, but his liver transaminases, direct bilirubin, and GGT levels remained elevated. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8736 | PIDD1 |
Zornitza Stark gene: PIDD1 was added gene: PIDD1 was added to Mendeliome. Sources: Expert Review Mode of inheritance for gene: PIDD1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PIDD1 were set to 28397838; 29302074; 33414379; 34163010 Phenotypes for gene: PIDD1 were set to Global developmental delay; Intellectual disability; Seizures; Autism; Behavioral abnormality; Psychosis; Pachygyria; Lissencephaly; Abnormality of the corpus callosum Review for gene: PIDD1 was set to GREEN Added comment: There is enough evidence to include this gene in the current panel with green rating. Biallelic PIDD1 pathogenic variants have been reported in 26 individuals (11 families) with DD (all), variable degrees of ID (mild to severe), behavioral (eg. aggression/self-mutilation in several, ADHD) and/or psychiatric abnormalities (ASD, psychosis in 5 belonging to 3 families), well-controlled epilepsy is some (9 subjects from 6 families) and MRI abnormalities notably abnormal gyration pattern (pachygyria with predominant anterior gradient) as well as corpus callosum anomalies (commonly thinning) in several. Dysmorphic features have been reported in almost all, although there has been no specific feature suggested. The first reports on the phenotype associated with biallelic PIDD1 mutations were made by Harripaul et al (2018 - PMID: 28397838) and Hu et al (2019 - PMID: 29302074) [both studies investigating large cohorts of individuals with ID from consanguineous families]. Sheikh et al (2021 - PMID: 33414379) provided details on the phenotype of 15 individuals from 5 families including those from the previous 2 reports and studied provided evidence on the role of PIDD1 and the effect of variants. Zaki et al (2021 - PMID: 34163010) reported 11 additional individuals from 6 consanguineous families, summarize the features of all subjects published in the literature and review the neuroradiological features of the disorder. PIDD1 encodes p53-induced death domain protein 1. The protein is part of the PIDDosome, a multiprotein complex also composed of the bipartite linker protein CRADD (also known as RAIDD) and the proform of caspase-2 and induces apoptosis in response to DNA damage. There are 5 potential PIDD1 mRNA transcript variants with NM_145886.4 corresponding to the longest. Similar to the protein encoded by CRADD, PIDD1 contains a death domain (DD - aa 774-893). Constitutive post-translational processing gives PIDD1-N, PIDD1-C the latter further processed into PIDD1-CC (by auto-cleavage). Serine residues at pos. 446 and 588 are involved in this autoprocessing generating PIDD1-C (aa 446-910) and PIDD1-CC (aa 774-893). The latter is needed for caspase-2 activation. Most (if not all) individuals belonged to consanguineous families of different origins and harbored pLoF or missense variants. Variants reported so far include : c.2587C>T; p.Gln863* / c.1909C>T ; p.Arg637* / c.2443C>T / p.Arg815Trp / c.2275-1G>A which upon trap assay was shown to lead to skipping of ex15 with direct splicing form exon14 to the terminal exon 16 (resulting to p.Arg759Glyfs*1 with exlcusion of the entire DD) / c.2584C>T; p.Arg862Trp / c.1340G>A; p.Trp447* / c.2116_2120del; p.Val706His*, c.1564_1565del; p.Gly602fs*26 Evidence so far provided includes: - Biallelic CRADD variants cause a NDD disorder and a highly similar gyration pattern. - Confirmation of splicing effect (eg. for c.2275-1G>A premature stop in position 760) or poor expression (NM_145886.3:c.2587C>T; p.Gln863*). Arg815Trp did not affect autoprocessing or protein stability. - Abnormal localization pattern, loss of interaction with CRADD and failure to activate caspase-2 (MDM2 cleavage assay) [p.Gln863* and Arg815Trp] - Available expression data from GTEx (PIDD1 having broad expression in multiple tissues, but higher in brain cerebellum) as well as BrainSpan and PsychEncode studies suggesting high coexpression of PIDD1, CRADD and CASP2 in many regions in the developing human brain. - Variants in other genes encoding proteins interacting with PIDD1 (MADD, FADD, DNAJ, etc) are associated with NDD. Pidd-1 ko mice (ex3-15 removal) lack however CNS-related phenotypes. These show decreased anxiety but no motor anomalies. This has also been the case with Cradd-/- mice displaying no significant CNS phenotypes without lamination defects. There is currently no associated phenotype in OMIM. PIDD1 is listed in the DD panel of G2P (PIDD1-related NDD / biallelic / loss of function / probable) . SysID includes PIDD1 among the current primary ID genes. Sources: Expert Review |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8734 | COLGALT1 |
Bryony Thompson gene: COLGALT1 was added gene: COLGALT1 was added to Mendeliome. Sources: Other Mode of inheritance for gene: COLGALT1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: COLGALT1 were set to 30412317; 33709034; 31759980 Phenotypes for gene: COLGALT1 were set to Brain small vessel disease 3 MIM#618360 Review for gene: COLGALT1 was set to GREEN Added comment: 3 unrelated cases with biallelic variants, and supporting functional assays. The main features of the cases were porencephalic cysts, leukoencephalopathy, lacunar infarcts, cerebral microbleeds/haemorrhages and calcifications. A null mouse model was embryonic lethal, but had defects in the vascular networks of the embryos. Sources: Other |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8732 | JAKMIP1 |
Seb Lunke gene: JAKMIP1 was added gene: JAKMIP1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: JAKMIP1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: JAKMIP1 were set to 29158550; 26627310; 27799067 Phenotypes for gene: JAKMIP1 were set to Intellectual disability; Seizures Review for gene: JAKMIP1 was set to AMBER Added comment: Identified in two independent patients in the literature with a mouse model. Patient 1 (27799067) with developmental delay, speech delay, and cognitive impairment; self-injurious and aggressive behaviour, seizures, dysmorphic features. De-novo missense JAKMIP1 (p.D586H). Patient 2 (29158550) with feeding difficulties, hypotonia, epilepsy, severe ID, no active speech, kyphoscoliosis, constipation, autism, short stature. Splice variant c.1432-2A>G, no segregation or RNA data available. KO mouse model (27799067) displays social deficits, stereotyped activity, abnormal postnatal vocalizations, and other autistic-like behaviors. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8601 | CLCN3 |
Kristin Rigbye gene: CLCN3 was added gene: CLCN3 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CLCN3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: CLCN3 were set to PMID: 34186028 Phenotypes for gene: CLCN3 were set to Neurodevelopmental disorder Mode of pathogenicity for gene: CLCN3 was set to Other Review for gene: CLCN3 was set to GREEN Added comment: 11 individuals reported, 9 that carried 8 different rare heterozygous missense variants in CLCN3, and 2 siblings that were homozygous for an NMD-predicted frameshift variant likely abolishing ClC-3 function. All missense variants were confirmed to be de novo in eight individuals for whom parental data was available. The 11 individuals in the cohort share clinical features of variable severity. All 11 have GDD or ID and dysmorphic features, and a majority has mood or behavioural disorders and structural brain abnormalities: - Structural brain abnormalities on MRI (9/11) included partial or full agenesis of the corpus callosum (6/9), disorganized cerebellar folia (4/9), delayed myelination (3/9), decreased white matter volume (3/9), pons hypoplasia (3/9), and dysmorphic dentate nuclei (3/9). Six of those with brain abnormalities also presented with seizures. - Nine have abnormal vision, including strabismus in four and inability to fix or follow in the two with homozygous loss-of-function variants. - Hypotonia ranging from mild to severe was reported in 7 of the 11 individuals. - Six have mood or behavioural disorders, particularly anxiety (3/6). - Consistent dysmorphic facial features included microcephaly, prominent forehead, hypertelorism, down-slanting palpebral fissures, full cheeks, and micrognathia. The severity of disease in the two siblings with homozygous disruption of ClC-3 is consistent with the drastic phenotype seen in Clcn3 KO mice. The disease was more severe in two siblings carrying homozygous loss-of-function variants with the presence of GDD, absent speech, seizures, and salt and pepper fundal pigmentation in both individuals, with one deceased at 14 months of age. The siblings also had significant neuroanatomical findings including diffusely decreased white matter volume, thin corpora callosa, small hippocampi, and disorganized cerebellar folia. Supporting biallelic inheritance for LoF variants, disruption of mouse Clcn3 results in drastic neurodegeneration with loss of the hippocampus a few months after birth and early retinal degeneration. Clcn3−/− mice display severe neurodegeneration, whereas heterozygous Clcn3+/− mice appear normal. Patch-clamp studies were used to investigate four of the missense variants. These suggested a gain of function in two variants with increased current in HEK cells, however they also showed reduced rectification of voltage and a loss of transient current, plus decreased current amplitude, glycosylation and surface expression when expressed in oocytes, and were suspected to interfere with channel gating and a negative feedback mechanism. These effects were also shown to vary depending on pH levels. The current of the remaining two variants did not differ from WT. For heterozygous missense variants, the disruption induced may be at least partially conferred to mutant/WT homodimers and mutant/ClC-4 heterodimers. Both loss and gain of function in this gene resulted in the same phenotype. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8449 | ZNF148 |
Natalie Tan gene: ZNF148 was added gene: ZNF148 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: ZNF148 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: ZNF148 were set to PMID: 27964749 Phenotypes for gene: ZNF148 were set to Global developmental delay, absent or hypoplastic corpus callosum, and dysmorphic facies; MIM#617260 Review for gene: ZNF148 was set to GREEN Added comment: Four unrelated individuals with de novo heterozygous nonsense or frameshift mutations (all resulting in premature termination codons in the last exon of ZNF148, predicted to escape nonsense-mediated mRNA decay and result in expression of a truncated protein). Phenotype characterised by underdevelopment of the corpus callosum, mild to moderate developmental delay and ID, variable microcephaly or mild macrocephaly, short stature, feeding problems, facial dysmorphisms, and cardiac and renal malformations. No functional studies to date. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.8292 | RNF2 |
Eleanor Williams gene: RNF2 was added gene: RNF2 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: RNF2 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: RNF2 were set to 33864376 Phenotypes for gene: RNF2 were set to epilepsy; intellectual disability; intrauterine growth retardation Review for gene: RNF2 was set to AMBER Added comment: Not associated with any phenotype in OMIM. PMID:33864376 (Luo et al 2021) report 2 cases of children with de novo missense variants (p.R70H and p.S82R) in RNF2 and a phenotype of intrauterine growth retardation, severe intellectual disabilities, behavioral problems, seizures, feeding difficulties and dysmorphic features. Seizures started in infancy. Both variants are absent from gnomad. Functional studies in Drosophila showed that the disease-linked variants (p.R70H and p.S82R) behave as LoF alleles. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7891 | PGM2L1 |
Chern Lim gene: PGM2L1 was added gene: PGM2L1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PGM2L1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PGM2L1 were set to 33979636 Phenotypes for gene: PGM2L1 were set to severe developmental and speech delay, dysmorphic facial features, ear anomalies, high arched palate, strabismus, hypotonia, and keratosis pilaris Review for gene: PGM2L1 was set to GREEN gene: PGM2L1 was marked as current diagnostic Added comment: PMID: 33979636: - Hom/chet PTVs in 4 unrelated individuals. All four affected individuals had severe developmental and speech delay, dysmorphic facial features, ear anomalies, high arched palate, strabismus, hypotonia, and keratosis pilaris. Early obesity and seizures were present in three individuals. - Studies on patient fibroblasts and cell lines indicated that PGM2L1 deficiency causes a decrease, but not a disappearance, of the sugar bisphosphates needed for the formation of NDP-sugars and that there is no evidence that this leads to a glycosylation defect. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7817 | TBXA2R | Zornitza Stark Phenotypes for gene: TBXA2R were changed from to {Bleeding disorder, platelet-type, 13, susceptibility to}, MIM# 614009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7813 | TBXA2R | Zornitza Stark reviewed gene: TBXA2R: Rating: AMBER; Mode of pathogenicity: None; Publications: 7929844, 19828703, 22517902; Phenotypes: {Bleeding disorder, platelet-type, 13, susceptibility to}, MIM# 614009; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7813 | P2RY12 | Zornitza Stark Phenotypes for gene: P2RY12 were changed from to Bleeding disorder, platelet-type, 8, MIM# 609821; MONDO:0012354 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7810 | P2RY12 | Zornitza Stark reviewed gene: P2RY12: Rating: GREEN; Mode of pathogenicity: None; Publications: 11196645, 12578987, 29117459, 19237732; Phenotypes: Bleeding disorder, platelet-type, 8, MIM# 609821, MONDO:0012354; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7804 | ITGA2B | Zornitza Stark Phenotypes for gene: ITGA2B were changed from to Bleeding disorder, platelet-type, 16, MIM# 187800; MONDO:000855; Glanzmann thrombasthaenia 1, MIM# 273800 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7801 | ITGA2B | Zornitza Stark reviewed gene: ITGA2B: Rating: GREEN; Mode of pathogenicity: None; Publications: 1638023, 21454453, 8282784, 16463284; Phenotypes: Bleeding disorder, platelet-type, 16, MIM# 187800, MONDO:000855, Glanzmann thrombasthaenia 1, MIM# 273800; Mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7780 | GP6 | Zornitza Stark Phenotypes for gene: GP6 were changed from to Bleeding disorder, platelet-type, 11, MIM# 614201; MONDO:0013623 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7777 | GP6 | Zornitza Stark reviewed gene: GP6: Rating: GREEN; Mode of pathogenicity: None; Publications: 19549989, 19552682, 23815599; Phenotypes: Bleeding disorder, platelet-type, 11, MIM# 614201, MONDO:0013623; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7767 | FGB |
Zornitza Stark changed review comment from: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both. Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association.; to: Inherited disorders of fibrinogen affect either the quantity (afibrinogenaemia and hypofibrinogenaemia) or the quality (dysfibrinogenemia) of the circulating fibrinogen or both. Afibrinogenaemia is characterized by the complete absence of immunoreactive fibrinogen. Bleeding due to afibrinogenaemia usually manifests in the neonatal period, with 85% of cases presenting umbilical cord bleeding, but a later age of onst is not unusual. Bleeding may occur in the skin, gastrointestinal tract, genitourinary tract, or the central nervous system, with intracranial haemorrhage being reported as the major cause of death. Patients are susceptible to spontaneous rupture of the spleen. First-trimester pregnancy loss is common. Both arterial and venous thromboembolic complications have been reported. Hypofibrinogenaemia is a milder disorder. Well established gene-disease association. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7199 | ITGB3 | Zornitza Stark Phenotypes for gene: ITGB3 were changed from to Bleeding disorder, platelet-type, 24, MIM#619271; MONDO:0008552 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7196 | ITGB3 | Zornitza Stark reviewed gene: ITGB3: Rating: GREEN; Mode of pathogenicity: None; Publications: 18065693, 19336737, 20081061, 23253071; Phenotypes: Bleeding disorder, platelet-type, 24, MIM#619271, MONDO:0008552; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7191 | UNC50 |
Arina Puzriakova gene: UNC50 was added gene: UNC50 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UNC50 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UNC50 were set to 29016857; 33820833 Phenotypes for gene: UNC50 were set to Arthrogryposis multiplex congenita Review for gene: UNC50 was set to AMBER Added comment: UNC50 is currently not associated with any phenotype in OMIM (last edited on 02/01/2018) or Gene2Phenotype. - PMID: 29016857 (2017) - Homozygosity mapping of disease loci combined with WES in a single male from a consanguineous family presenting with lethal AMC revealed a homozygous frameshift deletion in UNC50 gene (c.750_751del:p.Cys251Phefs*4). Functional studies in C. elegans showed the variant caused loss of acetylcholine receptor expression in the muscle. - PMID: 33820833 (2021) - Single individual reported with the same homozygous c.750_751del:p.Cys251Phefs*4 variant in UNC50 as previously described. The case was identified from a cohort of 315 genetically undiagnosed and unrelated AMC families. Arthrogryposis and tetra ventricular dilation were detected prenatally. -- Note: it isn't definitively clear whether these are different individuals. Both are singleton males born to consanguineous parents, with the same variant and similar phenotype. Also both infants died at 28 w.g. However, the 2021 paper (PMID:33820833) states their patient was selected from a cohort of cases without a molecular diagnosis and indicate the UNC50 gene had already previously been identified in relation to this phenotype, highlighting the earlier paper (PMID:29016857). There is also no mention of tetra ventricular dilation in the first case, so it is likely that these do represent distinct individuals. Additional cases needed to provide clarity. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7175 | FAR1 | Zornitza Stark edited their review of gene: FAR1: Added comment: PMID33239752: 12 patients with paediatric onset spastic paraparesis and bilateral congenital/juvenile cataracts. Most also had speech and gross motor developmental delay and truncal hypotonia. Exome sequencing identified de novo variants affecting the Arg480 residue in FAR1 (p.Arg480Cys/His/Leu). Further functional studies in fibroblasts showed that these variants cause a disruption of the plasmalogen-dependent feedback regulation of FAR1 protein levels leading to uncontrolled ether lipid production.; Changed rating: GREEN; Changed publications: 25439727, 33239752; Changed phenotypes: Peroxisomal fatty acyl-CoA reductase 1 disorder, MIM#616154, spastic paraparesis and bilateral cataracts; Changed mode of inheritance: BOTH monoallelic and biallelic, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.7126 | TSPOAP1 | Tiong Tan Added comment: Comment on list classification: Need to add to HSP gene lists too - dystonia/HSP | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6808 | SATB1 | Zornitza Stark edited their review of gene: SATB1: Added comment: Kohlschutter-Tonz syndrome-like (KTZSL) is characterized by global developmental delay with moderately to severely impaired intellectual development, poor or absent speech, and delayed motor skills. Although the severity of the disorder varies, many patients are nonverbal and have hypotonia with inability to sit or walk. Early-onset epilepsy is common and may be refractory to treatment, leading to epileptic encephalopathy and further interruption of developmental progress. Most patients have feeding difficulties with poor overall growth and dysmorphic facial features, as well as significant dental anomalies resembling amelogenesis imperfecta. This phenotype was reported in 28 patients (patients 13 to 40, PMID 33513338), including 9 patients from 3 families. Most variants were de novo, though some were inherited, suggestive of incomplete penetrance and variable expressivity.; Changed phenotypes: Developmental delay with dysmorphic facies and dental anomalies, MIM# 619228, Kohlschutter-Tonz syndrome-like, MIM# 619229 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6412 | LMNB1 | Zornitza Stark Phenotypes for gene: LMNB1 were changed from Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 to Microcephaly 26, primary, autosomal dominant, MIM# 619179; Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6411 | LMNB1 | Zornitza Stark edited their review of gene: LMNB1: Changed phenotypes: Microcephaly 26, primary, autosomal dominant, MIM# 619179, Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis, Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6073 | EED | Zornitza Stark Marked gene: EED as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6073 | EED | Zornitza Stark Gene: eed has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6073 | EED | Zornitza Stark Phenotypes for gene: EED were changed from to Cohen-Gibson syndrome, MIM# 617561 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6072 | EED | Zornitza Stark Publications for gene: EED were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6071 | EED | Zornitza Stark Mode of inheritance for gene: EED was changed from Unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.6070 | EED | Zornitza Stark reviewed gene: EED: Rating: GREEN; Mode of pathogenicity: None; Publications: 25787343, 27193220, 27868325, 28229514; Phenotypes: Cohen-Gibson syndrome, MIM# 617561; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5684 | DPAGT1 |
Zornitza Stark changed review comment from: Type I CDG. More than 20 unrelated families reported. Most affected individuals have a very severe disease course, where common findings are pronounced muscular hypotonia, intractable epilepsy, global developmental delay/intellectual disability, and early death. Additional features that may be observed include apnoea and respiratory deficiency, cataracts, joint contractures, vermian hypoplasia, dysmorphic features (esotropia, arched palate, micrognathia, finger clinodactyly, single flexion creases) and feeding difficulties. Myasthenic syndrome, congenital, 13, with tubular aggregates, MIM 614750 is a milder allelic disorder.; to: Type I CDG. More than 20 unrelated families reported. Most affected individuals have a very severe disease course, where common findings are pronounced muscular hypotonia, intractable epilepsy, global developmental delay/intellectual disability, and early death. Additional features that may be observed include apnoea and respiratory deficiency, cataracts, joint contractures, vermian hypoplasia, dysmorphic features (esotropia, arched palate, micrognathia, finger clinodactyly, single flexion creases) and feeding difficulties. Myasthenic syndrome, congenital, 13, with tubular aggregates, MIM 614750 is a milder allelic disorder. More than 5 unrelated families reported with this presentation. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5567 | VPS4A |
Kristin Rigbye changed review comment from: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." Sources: Literature; to: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents - possibly just a simple LoF mechanism for AR inheritance). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5567 | VPS4A |
Elena Savva changed review comment from: Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life."; to: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5567 | VPS4A | Elena Savva Added comment: Comment when marking as ready: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5558 | VPS4A |
Kristin Rigbye gene: VPS4A was added gene: VPS4A was added to Mendeliome. Sources: Literature Mode of inheritance for gene: VPS4A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: VPS4A were set to PMID: 33186543; 33186545 Phenotypes for gene: VPS4A were set to Neurodevelopmental disorder Review for gene: VPS4A was set to GREEN Added comment: PMID: 33186543 - 2x de novo hetorozygous missense variants in the AAA (large ATPase) domain. 1x homozygous missense in the MIT domain (milder phenotype and unaffected parents). Demonstrated defective CD71 trafficking in all 3 patients. PMID: 33186545 - 6x probands with de novo missense variants in the AAA domain. 5 of the variants were at amino acid position 284 (changes to Trp and Gly). Demonstrated that the variants had a dominant-negative effect on VPS4A function. "The six probands with de novo substitutions affecting Glu206 or Arg284 had a consistent phenotype characterized by severe DD, profound ID, and dystonia. Children were very delayed in establishing head control and none achieved independent walking. Other common findings were cerebellar hypoplasia (five individuals out of six, the other showing uncharacterized severe cerebral atrophy) with a variable degree of corpus callosum hypoplasia. One individual also had bilateral polymicrogyria. Epilepsy was present in three and dystonia in five subjects. Eye involvement was also a common finding, including congenital cataract, retinal dystrophy, and in one case congenital Leber amaurosis. Four individuals were diagnosed with hepatosplenomegaly and/or steatosis. Three subjects had anemia, which was characterized as dyserythropoietic in two. Severe feeding difficulties were present in four individuals, requiring assisted feeding in three. Two had sensorineural deafness. Severe growth retardation, generally for all parameters, was present in most cases. Notably, severe microcephaly (typically with Z scores < −5) was universal. Overall, the disorder seems to have a poor prognosis as two affected individuals died in childhood or early adult life." Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5507 | USP7 | Zornitza Stark edited their review of gene: USP7: Added comment: Hao-Fountain syndrome (HAFOUS) is a neurodevelopmental disorder characterized by global developmental delay, variably impaired intellectual development with significant speech delay, behavioral abnormalities, such as autism, and mild dysmorphic facies. Additional features are variable, but may include hypotonia, feeding problems, delayed walking with unsteady gait, hypogonadism in males, and ocular anomalies, such as strabismus. Some patients develop seizures and some have mild white matter abnormalities on brain imaging.; Changed publications: 26365382, 30679821; Changed phenotypes: Hao-Fountain syndrome, MIM# 616863, Intellectual disability, Autism | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.5487 | PIGH |
Zornitza Stark edited their review of gene: PIGH: Added comment: Further three families reported. Common clinical features include developmental delay/intellectual disability and hypotonia. Variable clinical features include seizures, autism spectrum disorder, apraxia, severe language delay, dysarthria, feeding difficulties, facial dysmorphisms, microcephaly, strabismus, and musculoskeletal anomalies.; Changed publications: 29573052, 29603516, 33156547 |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4998 | CSNK1G1 |
Zornitza Stark gene: CSNK1G1 was added gene: CSNK1G1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: CSNK1G1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: CSNK1G1 were set to 33009664 Phenotypes for gene: CSNK1G1 were set to Global developmental delay; Intellectual disability; Autism; Seizures Review for gene: CSNK1G1 was set to GREEN Added comment: Borderline Green/Amber rating. Gold et al (2020 - PMID: 33009664) report 5 individuals with CSNK1G1 variants, including updated information on a previously reported subject (Martin et al 2014 - PMID: 24463883). Features included DD (5/5) with associated expressive language delay, ASD (in at least 3/5), seizures (2/5), dysmorphic facial features (4/5 arched eyebrows, 3/5 prominent central incisors, 2/5 epicanthus) and limb anomalies (2/5 - proximally placed thumb, 5th f. clinodactyly, asymmetric overgrowth - the other individual had tapering fingers). GI problems were observed in 4/5. Two individuals had macrocephaly and one had microcephaly. There was no formal developmental assessment although ID might be implied in at least 3 individuals (p1: 20y - single words/regression in walking following a seizure episode, p2: 8y - first words at 5y, assistance to feed, dress and bathe, ASD, p4: 13y - regression, assistance to feed and dress). CSNK1G1 encodes the gamma-1 isoform of casein kinase 1, a protein involved in growth and cell morphogenesis. The gene has ubiquitous expression, incl. brain. As commented, in brain it regulates phosphorylation of NMDA receptors, playing a role in synaptic transmission (4 articles cited). One individual had a 1.2 kb deletion spanning exon 3 of CSNK1G1 [chr15:64550952-64552120 - GRCh37]. Parental samples were unavailable for this individual. Four individuals were found to harbor de novo CSNK1G1 variants [NM_022048.3: c.688C>T - p.(Arg230Trp) dn | c.1255C>T - p.(Gln419*) dn | c.1214+5G>A dn with in silico predictions in favor of splice disruption | c.419C>T - p.(Thr140Met) dn]. Arg230Trp is however present once in gnomAD. The stopgain variant is located in the last exon and predicted to skip NMD. There were no variant studies performed. The Drosophila gish gene encodes a CK1γ homolog with preferential expression in the mushroom body. Heterozygous and homozygous mutants exhibit impairment in memory retention, more severe in homozygous flies. gish was also identified as a seizure modifier in a fly epilepsy model (heterozygous para mt flies). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 v0.4531 | IBA57 |
Zornitza Stark changed review comment from: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable.; to: MMDS3: More than 15 families reported with bi-allelic variants in this gene and a severe neurodegenerative disorder characterised by loss of previously acquired developmental milestones in the first months or years of life. Some affected individuals have normal development in early infancy before the onset of symptoms, whereas others show delays from birth. Features included loss of motor function, spasticity, pyramidal signs, loss of speech, and cognitive impairment. The disease course is highly variable: some individuals die of respiratory failure early in childhood, whereas some survive but may be bedridden with a feeding tube. Less commonly, some individuals may survive and have a stable course with motor deficits and mild or even absent cognitive impairment, although there may be fluctuating symptoms, often in response to infection. Other variable features include visual problems and seizures. Brain imaging shows diffuse leukodystrophy in the subcortical region, brainstem, cerebellum, and spinal cord. Laboratory studies tend to show increased lactate and CSF glycine, and decreased activity of mitochondrial complexes I and II, although these findings are also variable. SPG74: Three families with spastic paraparesis as a feature of the condition. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4483 | LMNB1 | Zornitza Stark Phenotypes for gene: LMNB1 were changed from to Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis; Leukodystrophy, adult-onset, autosomal dominant, MIM#169500 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.4482 | LMNB1 | Zornitza Stark reviewed gene: LMNB1: Rating: GREEN; Mode of pathogenicity: Other; Publications: 32910914, 16951681, 19151023; Phenotypes: Global developmental delay, Intellectual disability, Microcephaly, Short stature, Seizures, Abnormality of the corpus callosum, Cortical gyral simplification, Feeding difficulties, Scoliosis, Leukodystrophy, adult-onset, autosomal dominant, MIM#169500; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3801 | THBD | Zornitza Stark Phenotypes for gene: THBD were changed from {Hemolytic uremic syndrome, atypical, susceptibility to, 6}, MIM# 612926 to {Hemolytic uremic syndrome, atypical, susceptibility to, 6}, MIM# 612926; Bleeding disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3799 | THBD | Zornitza Stark edited their review of gene: THBD: Added comment: Variants in this gene have also been linked to thrombophilia. Two families reported with a bleeding disorder, both variants located in the transmembrane domain.; Changed publications: 29500241, 19625716, 25564403, 32634856; Changed phenotypes: {Hemolytic uremic syndrome, atypical, susceptibility to, 6}, MIM# 612926, Bleeding disorder | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3794 | SLFN14 |
Zornitza Stark gene: SLFN14 was added gene: SLFN14 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: SLFN14 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SLFN14 were set to 26280575; 26769223 Phenotypes for gene: SLFN14 were set to Bleeding disorder, platelet-type, 20, MIM# 616913 Review for gene: SLFN14 was set to GREEN Added comment: At least four unrelated families reported. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3792 | PTPRJ |
Zornitza Stark gene: PTPRJ was added gene: PTPRJ was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PTPRJ was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PTPRJ were set to 30591527 Phenotypes for gene: PTPRJ were set to Thrombocytopaenia Review for gene: PTPRJ was set to AMBER Added comment: Two siblings reported with nonsyndromic thrombocytopenia characterised by spontaneous bleeding, small-sized platelets, and impaired platelet responses to the GPVI agonists collagen and convulxin. Supportive zebrafish model. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3790 | PTGS1 |
Zornitza Stark gene: PTGS1 was added gene: PTGS1 was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PTGS1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PTGS1 were set to 32299908; 11442478; 27629384; 8562397 Phenotypes for gene: PTGS1 were set to Platelet dysfunction; bleeding Review for gene: PTGS1 was set to AMBER Added comment: Single molecularly characterised family reported. However, note at least two previous older reports where deficiency was identified at protein rather than gene level. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3789 | PRKACG |
Zornitza Stark gene: PRKACG was added gene: PRKACG was added to Mendeliome. Sources: Expert list Mode of inheritance for gene: PRKACG was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PRKACG were set to 25061177; 30819905 Phenotypes for gene: PRKACG were set to Bleeding disorder, platelet-type, 19, MIM# 616176 Review for gene: PRKACG was set to RED Added comment: Single family reported only. A heterozygous VOUS reported in another individual in PMID 30819905 together with several other VOUS in same individual. Sources: Expert list |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3752 | EPHB2 | Zornitza Stark Phenotypes for gene: EPHB2 were changed from to Bleeding disorder, platelet-type, 22, MIM# 618462 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3748 | EPHB2 | Zornitza Stark reviewed gene: EPHB2: Rating: AMBER; Mode of pathogenicity: None; Publications: 30213874, 25370417; Phenotypes: Bleeding disorder, platelet-type, 22, MIM# 618462; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3748 | ACTN1 | Zornitza Stark Phenotypes for gene: ACTN1 were changed from to Bleeding disorder, platelet-type, 15, MIM# 615193 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3745 | ACTN1 | Zornitza Stark reviewed gene: ACTN1: Rating: GREEN; Mode of pathogenicity: None; Publications: 23434115; Phenotypes: Bleeding disorder, platelet-type, 15, MIM# 615193; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.3631 | MAPK1 |
Zornitza Stark gene: MAPK1 was added gene: MAPK1 was added to Mendeliome. Sources: Literature Mode of inheritance for gene: MAPK1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: MAPK1 were set to 32721402 Phenotypes for gene: MAPK1 were set to Global developmental delay; Intellectual disability; Behavioral abnormality; Growth delay; Abnormality of the face; Abnormality of the neck; Abnormality of the cardiovascular system; Abnormality of the skin Review for gene: MAPK1 was set to GREEN Added comment: Motta et al (2020 - PMID: 32721402) report on 7 unrelated individuals harboring de novo missense MAPK1 pathogenic variants. The phenotype corresponded to a neurodevelopmental disorder and - as the authors comment - consistently included DD, ID , behavioral problems. Postnatal growth delay was observed in approximately half. Hypertelorism, ptosis, downslant of palpebral fissures, wide nasal bridge as low-set/posteriorly rotated ears were among the facial features observed (each in 3 or more subjects within this cohort). Together with short/webbed neck and abnormalities of skin (lentigines / CAL spots) and growth delay these led to clinical suspicion of Noonan s. or disorder of the same pathway in some. Congenital heart defects (ASD, mitral valve insufficiency, though not cardiomyopathy) occurred in 4/7. Bleeding diathesis and lymphedema were reported only once. MAPK1 encodes the mitogen-activated protein kinase 1 (also known as ERK2) a serine/threonine kinase of the RAS-RAF-MEK-(MAPK/)ERK pathway. MAPK1 de novo variants were identified in all individuals following trio exome sequencing (and extensive previous genetic investigations which were non-diagnostic). The distribution of variants, as well as in silico/vitro/vivo studies suggest a GoF effect (boosted signal through the MAPK cascade. MAPK signaling also upregulated in Noonan syndrome). Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2825 | PDXK |
Russell Gear gene: PDXK was added gene: PDXK was added to Mendeliome. Sources: Literature Mode of inheritance for gene: PDXK was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: PDXK were set to (PMID: 31187503) Phenotypes for gene: PDXK were set to Axonal polyneuropathy; optic atrophy Review for gene: PDXK was set to RED Added comment: Currently two unrelated families with axonal polyneuropathy and optic atrophy described in the same paper, with bi-allelic PDXK pathogenic variants. Functional work in the same paper includes work on patient derived fibroblasts, measurement of an axonal damage biomarker (NFL protein), and response to PLP supplementation treatment. Need one further unrelated family to upgrade to green? Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2806 | GFI1B |
Bryony Thompson gene: GFI1B was added gene: GFI1B was added to Mendeliome. Sources: Literature Mode of inheritance for gene: GFI1B was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: GFI1B were set to 24325358; 23927492; 28041820; 11825872 Phenotypes for gene: GFI1B were set to Bleeding disorder, platelet-type, 17 MIM#187900 Review for gene: GFI1B was set to GREEN Added comment: Three families with a heterozygous variant and one case with a homozygous variant, with supporting in vitro functional assays. A null mouse model contained erythroid and megakaryocytic precursors arrested in their development. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2767 | UGDH |
Zornitza Stark gene: UGDH was added gene: UGDH was added to Mendeliome. Sources: Literature Mode of inheritance for gene: UGDH was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: UGDH were set to 32001716 Phenotypes for gene: UGDH were set to Epileptic encephalopathy, early infantile, 84 - MIM #618792 Review for gene: UGDH was set to GREEN Added comment: 36 individuals with biallelic UGDH pathogenic variants reported. The phenotype corresponded overall to a developmental epileptic encephalopathy with hypotonia, feeding difficulties, severe global DD, moderate or commonly severe ID in all. Hypotonia and motor disorder (incl. spasticity, dystonia, ataxia, chorea, etc) often occurred prior to the onset of seizures. A single individual did not present seizures and 2 sibs had only seizures in the setting of fever. There were no individuals with biallelic pLoF variants identified. Parental/sib studies were all compatible with AR inheritance mode. UGDH encodes the enzyme UDP-glucose dehydrogenase which converts UDP-glucose to UDP-glucuronate, the latter being a critical component of the glycosaminoglycans, hyaluronan, chondroitin sulfate, and heparan sulfate. Patient fibroblast and biochemical assays suggested a LoF effect of variants leading to impairment of UGDH stability, oligomerization or enzymatic activity (decreased UGDH-catalyzed reduction of NAD+ to NADH / hyaluronic acid production which requires UDP-glucuronate). Attempts to model the disorder using an already developped zebrafish model (for a hypomorphic LoF allele) were unsuccessful as fish did not exhibit seizures spontaneously or upon induction with PTZ. Modelling of the disorder in vitro using patient-derived cerebral organoids demonstrated smaller organoids due to reduced number of proliferating neural progenitors Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2621 | POLR3GL | Zornitza Stark Added comment: Comment when marking as ready: Three cases altogether but the phenotypes are very different -- may still represent a spectrum with the more severe phenotypes resulting from truncating variants but further cases needed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2440 | AGTPBP1 | Kristin Rigbye reviewed gene: AGTPBP1: Rating: GREEN; Mode of pathogenicity: None; Publications: 30420557; Phenotypes: Early onset cerebellar atrophy, developmental delay, and feeding and respiratory difficulties, severe motor neuronopathy, Neurodegeneration, childhood-onset, with cerebellar atrophy, 618276; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.2376 | PKDCC |
Alison Yeung Added comment: Comment on list classification: Two unrelated consanguineous families reported with different homozygous variants Pre-existing mouse model has similar phenotype Needs more functional evidence or further reported families |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1871 | BTBD7 | Zornitza Stark Added comment: Comment when marking as ready: Agreed, no evidence currently for Mendelian gene-disease association. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1870 | NOS1AP | Zornitza Stark Added comment: Comment when marking as ready: Agreed, cannot find evidence for Mendelian gene-disease association. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1845 | AGTPBP1 |
Zornitza Stark gene: AGTPBP1 was added gene: AGTPBP1 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: AGTPBP1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: AGTPBP1 were set to 30420557 Phenotypes for gene: AGTPBP1 were set to Early onset cerebellar atrophy, developmental delay, and feeding and respiratory difficulties, severe motor neuronopathy; Neurodegeneration, childhood-onset, with cerebellar atrophy, 618276 Review for gene: AGTPBP1 was set to GREEN Added comment: Thirteen individuals with bi-allelic variants in this gene, complex neurological phenotype of dev delay/ID, cerebellar atrophy and neuropathy, severe progressive course in six. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1788 | ZNF462 | Zornitza Stark Added comment: Comment when marking as ready: Multiple congenital anomaly syndrome characterised by variable but usually mild global developmental delay and common craniofacial abnormalities, including ptosis, abnormal head shape, downslanting palpebral fissures, epicanthal folds, arched eyebrows, and short upturned nose. Many patients have hypotonia and feeding difficulties. A few patients show agenesis of the corpus callosum on brain imaging. Most cases occur sporadically, but there are rare familial cases that show highly variable expressivity in the phenotypic manifestations. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1692 | PPM1E | Zornitza Stark Added comment: Comment when marking as ready: Agreed, cannot find evidence for Mendelian gene-disease association. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1438 | MYL1 |
Bryony Thompson gene: MYL1 was added gene: MYL1 was added to Mendeliome. Sources: NHS GMS Mode of inheritance for gene: MYL1 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: MYL1 were set to 30215711 Phenotypes for gene: MYL1 were set to Myopathy, congenital, with fast-twitch (type II) fiber atrophy MIM#618414 Review for gene: MYL1 was set to AMBER Added comment: Two probands with congenital myopathy and a zebrafish model. Probably need one more family to push it over the line. Sources: NHS GMS |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1111 | FLNA | Zornitza Stark Phenotypes for gene: FLNA were changed from to ?FG syndrome 2, XL; Cardiac valvular dysplasia, X-linked; Congenital short bowel syndrome; Frontometaphyseal dysplasia 1; Heterotopia, periventricular, 1; Intestinal pseudoobstruction, neuronal Melnick-Needles syndrome; Otopalatodigital syndrome, type I; Otopalatodigital syndrome, type II; Terminal osseous dysplasia | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.1069 | FLNA | Elena Savva reviewed gene: FLNA: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 30089473; Phenotypes: ?FG syndrome 2, XL, Cardiac valvular dysplasia, X-linked, Congenital short bowel syndrome, Frontometaphyseal dysplasia 1, Heterotopia, periventricular, 1, Intestinal pseudoobstruction, neuronal Melnick-Needles syndrome, Otopalatodigital syndrome, type I, Otopalatodigital syndrome, type II, Terminal osseous dysplasia; Mode of inheritance: X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.414 | INSRR | Zornitza Stark Added comment: Comment on list classification: Agreed, cannot find evidence for Mendelian gene-disease association. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.413 | GRIK5 | Zornitza Stark Added comment: Comment on list classification: Agreed, cannot find evidence for Mendelian gene-disease association. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.237 | SMARCC2 |
Zornitza Stark gene: SMARCC2 was added gene: SMARCC2 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SMARCC2 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SMARCC2 were set to 30580808 Phenotypes for gene: SMARCC2 were set to Coffin-Siris syndrome 8; OMIM #618362 Review for gene: SMARCC2 was set to GREEN Added comment: 15 individuals with variable degrees of neurodevelopmental delay, growth retardation, prominent speech impairment, hypotonia, feeding difficulties, behavioral abnormalities, and dysmorphic features. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.235 | SMARCD1 |
Zornitza Stark gene: SMARCD1 was added gene: SMARCD1 was added to Mendeliome_VCGS. Sources: Literature Mode of inheritance for gene: SMARCD1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: SMARCD1 were set to 30879640 Phenotypes for gene: SMARCD1 were set to Intellectual disability; dysmorphic features Review for gene: SMARCD1 was set to GREEN Added comment: 5 individuals with heterozygous SMARCD1 variants (4 de novo, 1 unk), and developmental delay, intellectual disability, hypotonia, feeding difficulties, dysmorphisms, and small hands and feet. Sources: Literature |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mendeliome v0.0 | EED |
Zornitza Stark gene: EED was added gene: EED was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services Mode of inheritance for gene: EED was set to Unknown |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||