Transcription promotes contraction of CAG repeat tracts in human cells

Lin, Yunfu, Dion, Vincent ORCID: https://orcid.org/0000-0003-4953-7637 and Wilson, John H. 2006. Transcription promotes contraction of CAG repeat tracts in human cells. Nature Structural {&} Molecular Biology 13 (2) , 179--180. 10.1038/nsmb1042

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Abstract

Induced transcription through CAG repeats in human cells increases repeat contraction ∼15-fold in both confluent and proliferating cells. Repeats are stabilized against contraction by siRNA knockdown of MSH2, MSH3 or XPA, but not by knockdown of MSH6, XPC or FEN1. These results define a pathway for CAG·CTG repeat contraction that is initiated by transcription, depends on elements of mismatch and nucleotide-excision repair and does not require DNA replication.

Item Type:	Article
Status:	Published
Schools:	Medicine
Last Modified:	25 Oct 2022 13:36
URI:	https://orca.cardiff.ac.uk/id/eprint/120302

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