| Date | Panel | Item | Activity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Intellectual disability syndromic and non-syndromic v1.122 | RAB3A | Bryony Thompson Marked gene: RAB3A as ready | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability syndromic and non-syndromic v1.122 | RAB3A | Bryony Thompson Gene: rab3a has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability syndromic and non-syndromic v1.122 | RAB3A | Bryony Thompson Classified gene: RAB3A as Green List (high evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability syndromic and non-syndromic v1.122 | RAB3A | Bryony Thompson Gene: rab3a has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Intellectual disability syndromic and non-syndromic v1.121 | RAB3A |
Bryony Thompson gene: RAB3A was added gene: RAB3A was added to Intellectual disability syndromic and non-syndromic. Sources: Literature Mode of inheritance for gene: RAB3A was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Publications for gene: RAB3A were set to 40166812 Phenotypes for gene: RAB3A were set to neurodevelopmental disorder MONDO:0700092 Review for gene: RAB3A was set to GREEN Added comment: 18 individuals from 10 unrelated cerebellar ataxia families were heterozygous for a RAB3A missense variant. 9/10 families had a recurrent variant - p.Arg83Trp. The age of onset of the ataxia was adult, except for 3 paediatric/adolescent onset cases. Additionally, 4 individuals from 3 families (F11, F12, F13) with 2 de novo missense and a stopgain had similar phenotypes consisting of a neurodevelopmental syndrome with progressive cognitive deficits and spasticity. F14 was a singleton with a missense variant and HMSN & optic atrophy. Initially included in the cohort for gait ataxia, was found to be a sensory ataxia. There were supporting in vitro functional assays and Drosophila rescue models that suggest partial loss of function as the disease mechanism, but were unable to differentiate the genotype-phenotype correlation for the cerebellar ataxia phenotype vs the neurodevelopmental syndrome. Sources: Literature |
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