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Repeat expansion affects both transcription initiation and elongation in friedreich ataxia cells

Expansion of a GAA · TTC repeat in the first intron of the frataxin (FXN) gene causes an mRNA deficit that results in Friedreich ataxia (FRDA). The region flanking the repeat on FRDA alleles is associated with more extensive DNA methylation than is seen on normal alleles and histone modifications typical of repressed genes. However, whether these changes are responsible for the mRNA deficit is controversial.

Repeat expansion affects both transcription initiation and elongation in friedreich ataxia cells


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Jen Farmer

Jen Farmer

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