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Mendeliome v1.2588 LSM1 Zornitza Stark Phenotypes for gene: LSM1 were changed from Neurodevelopmental disorder, MONDO:0700092, LSM1-related to FICUS syndrome, MIM# 621193
Mendeliome v1.2587 LSM1 Zornitza Stark edited their review of gene: LSM1: Changed phenotypes: FICUS syndrome, MIM# 621193
Mendeliome v1.2546 LSM1 Zornitza Stark Phenotypes for gene: LSM1 were changed from neurodevelopmental disorder MONDO:0700092, LSM1-related to Neurodevelopmental disorder, MONDO:0700092, LSM1-related
Mendeliome v1.2545 LSM1 Zornitza Stark Publications for gene: LSM1 were set to 31010896
Mendeliome v1.2544 LSM1 Zornitza Stark Classified gene: LSM1 as Green List (high evidence)
Mendeliome v1.2544 LSM1 Zornitza Stark Gene: lsm1 has been classified as Green List (High Evidence).
Mendeliome v1.2543 LSM1 Zornitza Stark edited their review of gene: LSM1: Added comment: LSM1 encodes a subunit of a complex composed of proteins LSM1-7 which is involved in mRNA stabilisation as well as degradation. Other proteins within the complex are yet to have a definitive disease association however LSM7 has been reported a candidate gene.

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

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

RT PCR of the splice variant demonstrated exon 3 skipping with a resultant truncated protein with presumed loss of function mechanism. It was noted by authors there are no biallelic loss of function variant in the gnomad v4, as such it was suggested complete loss of function is non viable. Variants outside of exon 3 have not yet been reported in affected individuals.; Changed rating: GREEN; Changed publications: 31010896, 36100156, 40204357; Changed phenotypes: Neurodevelopmental disorder, MONDO:0700092, LSM1-related
Mendeliome v1.2386 LSM1 Zornitza Stark Phenotypes for gene: LSM1 were changed from intellectual disability; congenital abnormalities to neurodevelopmental disorder MONDO:0700092, LSM1-related
Mendeliome v1.2385 LSM1 Sangavi Sivagnanasundram reviewed gene: LSM1: Rating: ; Mode of pathogenicity: None; Publications: ; Phenotypes: neurodevelopmental disorder MONDO:0700092; Mode of inheritance: None
Mendeliome v0.8918 LSM11 Zornitza Stark Phenotypes for gene: LSM11 were changed from type I interferonopathy Aicardi–Goutières syndrome to Aicardi-Goutieres syndrome 8, MIM# 619486
Mendeliome v0.8917 LSM11 Zornitza Stark reviewed gene: LSM11: Rating: RED; Mode of pathogenicity: None; Publications: ; Phenotypes: Aicardi-Goutieres syndrome 8, MIM# 619486; Mode of inheritance: None
Mendeliome v0.5916 LSM11 Seb Lunke Marked gene: LSM11 as ready
Mendeliome v0.5916 LSM11 Seb Lunke Gene: lsm11 has been classified as Red List (Low Evidence).
Mendeliome v0.5916 LSM11 Seb Lunke Classified gene: LSM11 as Red List (low evidence)
Mendeliome v0.5916 LSM11 Seb Lunke Gene: lsm11 has been classified as Red List (Low Evidence).
Mendeliome v0.5914 LSM11 Ee Ming Wong gene: LSM11 was added
gene: LSM11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: LSM11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LSM11 were set to PMID: 33230297
Phenotypes for gene: LSM11 were set to type I interferonopathy Aicardi–Goutières syndrome
Review for gene: LSM11 was set to AMBER
gene: LSM11 was marked as current diagnostic
Added comment: - Two affected siblings from a consanguineous family carrying a homozygous variant in LSM11
- Compared to control fibroblasts, patient fibroblasts were enriched for misprocessed forms of
replication-dependent histone (RDH) mRNAs
- Knockdown of LSM11 in THP-1 cells results in an increase in misprocessed RDH mRNA and
interferon signaling
Sources: Literature
Mendeliome v0.284 LSM1 Zornitza Stark Marked gene: LSM1 as ready
Mendeliome v0.284 LSM1 Zornitza Stark Gene: lsm1 has been classified as Red List (Low Evidence).
Mendeliome v0.284 LSM1 Zornitza Stark gene: LSM1 was added
gene: LSM1 was added to Mendeliome_VCGS. Sources: Literature
Mode of inheritance for gene: LSM1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: LSM1 were set to 31010896
Phenotypes for gene: LSM1 were set to intellectual disability; congenital abnormalities
Review for gene: LSM1 was set to RED
Added comment: 1 family with 2 siblings with global DD, multiple congenital anomalies, and abnormal eye movements, with homozygous splice variant in LSM1. Segregated with the phenotype in the family. Expression studies revealed absence of expression of the canonical isoform in the affected individuals. The Lsm1 knockout mice have a partially overlapping phenotype that affects the brain, heart, and eye.
Sources: Literature