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Am J Ophthalmol. 2003 Feb;135(2):213-8.

A novel mutation in the RDS/Peripherin gene causes adult-onset foveomacular dystrophy.

Author information

  • 1Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA.

Abstract

PURPOSE:

To describe a novel mutation in the RDS/Peripherin gene that results in a moderately severe form of adult-onset foveomacular dystrophy.

DESIGN:

Observational case series.

METHODS:

Selected members of a family with adult-onset foveomacular dystrophy underwent complete ophthalmic evaluation, including fundus photography and fluorescein angiography, in a tertiary care referral center. The study population consisted of 12 members of a Caucasian kindred. After providing informed consent, patients donated blood for genomic DNA extraction and mutational screening using standard techniques. The main outcome measure were the presence of a RDS/Peripherin gene mutation in a patient with the disease and its absence in unaffected family members and controls.

RESULTS:

Eight affected family members and no unaffected family members demonstrated a single guanine base deletion at nucleotide 112 that led to premature termination at amino acid 38 of RDS/Peripherin polypeptide. This frameshift mutation results in truncation of nearly 90% of the gene product, thus probably representing a null allele. That results in a relatively severe phenotype, with choroidal neovascularization developing in two patients and geographic atrophy involving the macula in three patients.

CONCLUSIONS:

We describe a frameshift null mutation in the RDS/Peripherin gene associated with a relatively severe manifestation of adult-onset foveomacular dystrophy in affected family members.

PMID:
12566026
[PubMed - indexed for MEDLINE]
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