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| Retinal disorders v4.36 | CFAP20 |
Zornitza Stark gene: CFAP20 was added gene: CFAP20 was added to Retinal disorders. Sources: Literature Mode of inheritance for gene: CFAP20 was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: CFAP20 were set to 36329026 Phenotypes for gene: CFAP20 were set to Retinitis pigmentosa (MONDO:0019200) Review for gene: CFAP20 was set to GREEN Added comment: Describe 8 individuals from 4 independent families with damaging biallelic variants (homozygous or compound heterozygous) in CFAP20 that segregate with retinal dystrophy. All variants cluster to one side of the protein, with two of the residues directly contacting alpha-tubullin. Family 1 - consanguineous set of 3 siblings from Sudan, homozygous for CFAP20 c.305G>A; p.Arg102His (they also had a homozygous variant in DYNC1LI2 however CFAP20 was considered the better candidate. Family 2 - 3 siblings from Spain, 2 with retinal dystrophy, 1 genetically tested and has c.337C>T; p.(Arg113Trp) and c.397delC; p.(Gln133Serfs*5) Family 3 - single affected family member compound het for c.164+1G>A and c.457A>G; p.(Arg153Gly). Family 4 - 3 affected siblings with generalised retinopathy and variable neurological deficits with c.164+1G>A and c.257G>A; p.(Tyr86Cys) For all families, no individuals had signs of polycystic kidney disease; however, not all individuals had kidney imaging. Visual defecit phenotype presented between adolescence and adulthood (17-56 years old). Used HEK293T cell expression studies to demonstrate a statistically significant decline of mutated CFAP20 protein levels (with the exception of p.Arg102His). To test the specific variants, they used the C.elegans orthologues. CFAP20 is a ciliopathy candidate. Demonstrate in zebrafish that cfap20 is required for motile cilia function, and in C. elegans, CFAP-20 maintains the structural integrity of non-motile cilia inner junctions, influencing sensory-dependent signalling and development. Sources: Literature |
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| Retinal disorders v1.160 | TYRP1 | Ivone Leong reviewed gene: TYRP1: Rating: RED; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retinal disorders v1.160 | TYR | Ivone Leong reviewed gene: TYR: Rating: RED; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retinal disorders v1.159 | TYRP1 | Gavin Arno reviewed gene: TYRP1: Rating: GREEN; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retinal disorders v1.159 | TYR | Gavin Arno reviewed gene: TYR: Rating: GREEN; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retinal disorders v1.137 | TYRP1 | Ivone Leong Source NHS GMS was added to TYRP1. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Retinal disorders v1.137 | TYR | Ivone Leong Source NHS GMS was added to TYR. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||