Deletion in the FMR1 gene in a fragile-X male.

Abstract

The pathogenesis of Fragile-X syndrome is a consequence of absence of the FMR1 gene product associated with expansion of the CGG repeat and abnormal methylation of this and a CpG island 250 bp proximal to the CGG repeat located at exon 1 in the FMR1 gene. While this is usually the case, some suspected Fragile-X syndrome patients have been described with a… (More)

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