Schematized representation of the genomic structure of the <i>FXN</i> gene.

Abstract

<p> The pathogenic expansion of the GAA repeat within intron 1 is indicated by a triangle, exons by grey boxes, respectively dark when translated and light when untranslated. Short genetic variations are indicated as black bars. The <i>FXN</i> 3′-UTR region, which was sequenced is highlighted by a square bracket.</p