Article
Repair of naturally occurring mismatches can induce mutations in flanking DNA.
eLife - 29 Apr 2014
Chen Jia, Miller Brendan F, Furano Anthony V
Abstract excerpt
'Normal' genomic DNA contains hundreds of mismatches that are generated daily by the spontaneous deamination of C (U/G) and methyl-C (T/G). Thus, a mutagenic effect of their repair could constitute a serious genetic burden. We show here that while mismatches introduced into human cells on an SV40-based episome were invariably repaired, this process induced mutations in flanking DNA at a significantly higher rate...
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