CRYAB

crystallin alpha B

Gene Function

May contribute to the transparency and refractive index of the lens. Has chaperone-like activity, preventing aggregation of various proteins under a wide range of stress conditions. In lens epithelial cells, stabilizes the ATP6V1A protein, preventing its degradation by the proteasome (By similarity) Source: UniProt

Relationship to CMT

Unclassified AD
1 subtype
11q23.1
First described 2023

Subtype Inheritance Class OMIM Sentinel Publication
SubtypeCMT-CRYAB Inheritanceautosomal dominant ClassUnclassified Subtypes OMIMn/a Sentinel Publication

2023 · 10.1111/ene.16063

Stored Identifiers

HGNC Aliases: CRYA2, HSPB5
hgnc_idHGNC:2389
ensembl_gene_idENSG00000109846
coords_grch38chr11:111908239-111923722
coords_grch37chr11:111779289-111794446
entrez_id1410
omim_gene123590
uniprot_idsP02511
refseq_accessionNM_001289807
mane_refseqNM_001289808.2
mane_ensemblENST00000650687.2

ClinVar Variants

Pathogenic and likely pathogenic variants in CRYAB, as classified in ClinVar, are read live from NCBI. Only aggregate germline records are shown. Uncertain and conflicting classifications are not. Experts in CMT makes no claim to the accuracy of ClinVar data. This index is provided for informational purposes only.

Review stars are ClinVar’s measure of how well a classification is supported: four for a practice guideline, three for an expert panel review, two for agreement among multiple submitters, one for a single submitter with criteria provided, and none where no criteria were provided.

Reported in CMT
Reported in Other Diseases

Reported in a disease other than CMT. Listed apart rather than counted as CMT variants.

Variants w/o a Recorded Disease

Pathogenic or likely pathogenic in ClinVar, submitted without a disease recorded.

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