Mismatch repair prefers exons.

Nat Genet

Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA.

Published: November 2017

A new analysis of cancer genomes identifies a decrease in the mutation burden of exons, but not introns, as compared to expectation. This difference can be explained by preferential recruitment of the DNA mismatch repair machinery to a protein modification that marks exons.

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Source
http://dx.doi.org/10.1038/ng.3993DOI Listing

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