CNGA1 (P29973) variants and mutations

CNGA1 (also known as P29973) is a human protein-coding gene encoding a cyclic nucleotide-gated channel alpha-1 protein. It forms part of the cyclic-GMP-gated conductance that depolarizes rod photoreceptors in darkness and closes after light activation lowers cGMP. Biallelic loss-of-function variants cause autosomal recessive retinitis pigmentosa with progressive rod-cone degeneration. This analysis covers 1,341 CNGA1 variants and mutations. Of these, 73% have computational variant effect predictions. Disease context includes retinitis pigmentosa, retinitis pigmentosa 49, and Retinal dystrophy. Example CNGA1 variants include M1?, M1I, and K2N.

Variant analysis overview

Variant and mutation evidence

Clinical, disease, and population context

Protein structure and variant hotspots

Data sources

Evidence in this analysis draws on EBI Proteins Variation, UniProt, gnomAD v4, EuropePMC, 3D Hotspot Analysis, Interaction Network Analysis, Protein Data Bank, AlphaFold DB, gnomAD constraint, Open Targets, MaveDB, LitVar.

Notable CNGA1 variants

Examples include M1?, M1I, K2N, N3I, N3S, N4S, I5N, I5T. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.