Mutation screen of beta-crystallin genes in 274 patients with age-related macular degeneration.

Abstract:

PURPOSE:The crystallin family of proteins comprise the main structural proteins of the vertebrate lens and have been classified into alpha-, beta-, and gamma- families. Several of the beta-crystallin proteins have been detected in the retina where they are each localized to different compartments of rod and cone photoreceptors. Functionally, beta-crystallins have been implicated in the protection of the retina from intense light exposure. Two members of the beta-crystallins, CRYBB1 and CRYBB2, have been identified in drusen preparations isolated from the retina of donor eyes of patients with age-related macular degeneration (AMD), the leading cause of blindness in the elderly population of developed countries. We therefore investigated CRYBB1 and CRYBB2 as candidate genes for AMD in 274 unrelated patients. RESULTS:A mutation screen of the entire coding region of the CRYBB1gene uncovered eight sequence variations, including three missense changes, two intronic changes and three isocoding changes. A mutation screen of the entire coding region of the CRYBB2 gene uncovered three sequence variations, one isocoding change and two intronic changes. CONCLUSIONS:Although variant alleles of the CRYBB1 and CRYBB2 genes were found, none are considered pathogenic.

journal_name

Ophthalmic Genet

journal_title

Ophthalmic genetics

authors

Sturgill GM,Bala E,Yaniglos SS,Peachey NS,Hagstrom SA

doi

10.3109/13816810.2010.486774

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

129-34

issue

3

eissn

1381-6810

issn

1744-5094

journal_volume

31

pub_type

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