Mutation spectrum and founder chromosomes for the ABCA4 gene in South African patients with Stargardt disease.

Abstract excerpt

PURPOSE: To assess the mutation spectrum of ABCA4 underlying Stargardt disease (STGD) in South Africa (SA) and to determine whether there is a single or a few founder chromosomes in SA STGD families. METHODS: Sixty-four probands exhibiting the STGD phenotype were screened for mutations in the 50 exons of ABCA4 by single-strand conformational polymorphism-heteroduplex analysis sequencing and restriction fragment...

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