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Mol Vis. 2010 Feb 10;16:207-12.

A null mutation in CABP4 causes Leber's congenital amaurosis-like phenotype.

Author information

1
Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.

Abstract

PURPOSE:

To describe the finding of a novel calcium binding protein 4 (CABP4) mutation in a family with Leber congenital amaurosis (LCA) phenotype.

METHODS:

Homozygosity mapping was performed in a consanguineous family with four affected members originally referred as cases of LCA. Detailed electroretinographic recordings were obtained.

RESULTS:

A novel homozygous single base-pair insertion was identified in all four siblings. The patients had an LCA-like phenotype, including either flat or greatly diminished electroretinographic activity.

CONCLUSIONS:

This report significantly expands on the phenotype associated with calcium binding protein 4 mutations, which has so far been limited to congenital stationary night blindness, and further demonstrates how molecular data often blur the boundaries between what are believed to be clinically distinct retinal disorders.

PMID:
20157620
PMCID:
PMC2820108
[Indexed for MEDLINE]
Free PMC Article

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