Repair that recognizes and corrects mismatched sequence after copying or strand exchange. It can also inhibit homologous recombination between sufficiently divergent sequences.[ref]
Identification of the newly synthesized strand as the strand to replace during correction. Detecting a mismatch without an appropriate strand signal does not specify which base should be retained.
An enzyme involved in methyl-directed DNA mismatch repair in E. coli. This mechanism should not be generalized to eukaryotic daughter-strand discrimination.
A mismatch-repair protein complex that connects recognition with downstream processing. Complex composition and strand-incision mechanisms differ between organisms.
The eukaryotic MSH2–MSH3 complex, with an important role in recognition of larger insertion–deletion loops.
The eukaryotic MSH2–MSH6 mismatch-recognition complex, acting on base mismatches and many small insertion–deletion loops.

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