A genomic deletion encompassing CRYBB2-CRYBB2P1 is responsible for autosomal recessive congenital cataracts

oleh: Bushra Irum, Firoz Kabir, Nadav Shoshany, Shahid Y. Khan, Bushra Rauf, Muhammad Asif Naeem, Tanveer A. Qaiser, Sheikh Riazuddin, J. Fielding Hejtmancik, S. Amer Riazuddin

Format: Article
Diterbitkan: Nature Publishing Group 2022-09-01

Deskripsi

Abstract Here we report a consanguineous Pakistani family with multiple affected individuals with autosomal recessive congenital cataract (arCC). Exclusion analysis established linkage to chromosome 22q, and Sanger sequencing coupled with PCR-based chromosome walking identified a large homozygous genomic deletion. Our data suggest that this deletion leads to CRYBB2-CRYBB2P1 fusion, consisting of exons 1–5 of CRYBB2 and exon 6 of CRYBB2P1, the latter of which harbors the c.463 C > T (p.Gln155*) mutation, and is responsible for arCC.