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Intellectual disability syndromic and non-syndromic v1.92 SVBP Zornitza Stark Phenotypes for gene: SVBP were changed from Neurodevelopmental disorder with ataxia, hypotonia, and microcephaly; OMIM #618569 to Neurodevelopmental disorder with ataxia, hypotonia, and microcephaly, MIM #618569; Spastic paraplegia 94, autosomal recessive, MIM# 621150
Intellectual disability syndromic and non-syndromic v1.91 SVBP Zornitza Stark Publications for gene: SVBP were set to PMID: 31363758; 30607023
Intellectual disability syndromic and non-syndromic v1.90 SVBP Zornitza Stark edited their review of gene: SVBP: Added comment: PMID 39412222: 6 individuals from 3 families with spastic paraplegia and the same homozygous missense (L49P). Presented from birth or childhood with DD/ID and spastic paraplegia. Additional features: verbal apraxia, axonal neuropathy, ataxia, nystagmus, epilepsy, and aggressive behaviour. Brain MRIs were performed in 3 individuals and showed thinning of the corpus callosum, cerebellar atrophy, and ventriculomegaly; frontal ventricular hyperintensities suggestive of the 'ear of the lynx' sign in 2. Three individuals had a history of cancer of epithelial origin, including adenocarcinoma (patient 1), colonic tubular adenoma (patient 2), and breast cancer (patient 3).; Changed publications: 39412222; Changed phenotypes: Neurodevelopmental disorder with ataxia, hypotonia, and microcephaly, MIM #618569, Spastic paraplegia 94, autosomal recessive, MIM# 621150
Intellectual disability syndromic and non-syndromic v0.3007 SVBP Zornitza Stark Tag founder tag was added to gene: SVBP.
Intellectual disability syndromic and non-syndromic v0.3007 SVBP Zornitza Stark reviewed gene: SVBP: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Neurodevelopmental disorder with ataxia, hypotonia, and microcephaly, OMIM #618569; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Intellectual disability syndromic and non-syndromic v0.1548 SVBP Zornitza Stark Marked gene: SVBP as ready
Intellectual disability syndromic and non-syndromic v0.1548 SVBP Zornitza Stark Gene: svbp has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.1290 SVBP Chirag Patel Classified gene: SVBP as Green List (high evidence)
Intellectual disability syndromic and non-syndromic v0.1290 SVBP Chirag Patel Gene: svbp has been classified as Green List (High Evidence).
Intellectual disability syndromic and non-syndromic v0.1289 SVBP Chirag Patel gene: SVBP was added
gene: SVBP was added to Intellectual disability, syndromic and non-syndromic_GHQ_VCGS. Sources: Literature
Mode of inheritance for gene: SVBP was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SVBP were set to PMID: 31363758; 30607023
Phenotypes for gene: SVBP were set to Neurodevelopmental disorder with ataxia, hypotonia, and microcephaly; OMIM #618569
Review for gene: SVBP was set to GREEN
Added comment: 5 unrelated families with homozygous mutations in SVBP. The mutations segregated with the disorder in all families. In vitro functional cellular expression studies showed that protein levels of the SVBP mutants were barely detectable, suggesting instability, and that the mutant proteins had lost VASH/SVBP catalytic detyrosination activity toward tubulin. Knockdown of about 50% Svbp expression using shRNA in rat hippocampal neurons impaired the formation of excitatory synapses compared to controls.
Sources: Literature