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Mendeliome v1.2811 SNW1 Lucy Spencer gene: SNW1 was added
gene: SNW1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SNW1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: SNW1 were set to 40608414
Phenotypes for gene: SNW1 were set to Neurodevelopmental disorder (MONDO:0700092), SNW1-related
Review for gene: SNW1 was set to GREEN
Added comment: cohort of 9 patients with moderate to profound ID, microcephaly, seizures (7/9), facial dysmorphism, and brain malformations (6/9 - corpus callosum hypoplasia, Dandy-Walker malformation).

3 splice, 1 frameshift, 2 missense, 3 in frame deletions, 1 start loss. all but 1 de novo (the last parents not available).

SNW1 is a core component of the spliceosome and facilitates the conformational changes of the spliceosome. Expression of variants in HEK293 cells showed some decreased SNW1 expression while others increased it (including the frameshift), and only the frameshift variant was mislocalised/in the cytoplasm instead of the nucleus. Several of the variants caused loss of binding to PPIL1 or other proteins which SNW1 usually recruits to the spliceosome. All variants in this study were found to either affect protein expression or localization or influence interactions with other proteins in the spliceosome complex suggesting loss of function.
Sources: Literature
Mendeliome v0.7463 PPIL1 Zornitza Stark Phenotypes for gene: PPIL1 were changed from Pontocerebellar hypoplasia; microcephaly; seizures to Pontocerebellar hypoplasia, type 14, MIM# 619301; microcephaly; seizures
Mendeliome v0.7462 PPIL1 Zornitza Stark edited their review of gene: PPIL1: Changed phenotypes: Pontocerebellar hypoplasia, type 14, MIM# 619301, microcephaly, seizures
Mendeliome v0.5609 CDC40 Zornitza Stark gene: CDC40 was added
gene: CDC40 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: CDC40 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: CDC40 were set to 33220177
Phenotypes for gene: CDC40 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: CDC40 was set to RED
Added comment: Single individual reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID, thrombocytopaenia, anaemia. Interaction with PPIL1 and mouse model support gene-disease association. Gene referred to as PRP17 in paper.
Sources: Literature
Mendeliome v0.5608 PPIL1 Zornitza Stark Marked gene: PPIL1 as ready
Mendeliome v0.5608 PPIL1 Zornitza Stark Gene: ppil1 has been classified as Green List (High Evidence).
Mendeliome v0.5608 PPIL1 Zornitza Stark Classified gene: PPIL1 as Green List (high evidence)
Mendeliome v0.5608 PPIL1 Zornitza Stark Gene: ppil1 has been classified as Green List (High Evidence).
Mendeliome v0.5607 PPIL1 Zornitza Stark gene: PPIL1 was added
gene: PPIL1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: PPIL1 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: PPIL1 were set to 33220177
Phenotypes for gene: PPIL1 were set to Pontocerebellar hypoplasia; microcephaly; seizures
Review for gene: PPIL1 was set to GREEN
Added comment: 17 individuals from 9 unrelated families reported with bi-allelic variants in the gene and PCH, microcephaly, hypotonia, seizures, severe DD/ID. Mouse models support gene-disease association.
Sources: Literature