DNA mismatch repair protein MLH3

UniProtKB accession:  Q12083

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Involved in DNA mismatch repair (MMR), correcting insertion-deletion loops (IDLs) resulting from DNA replication, DNA damage or from recombination events between non-identical sequences during meiosis. Component of the MutLbeta heterodimer, which probably forms a ternary complex with the MutSbeta heterodimer that initially recognizes the DNA mismatches. This complex is thought to be responsible for directing the downstream MMR events, including strand discrimination, excision, and resynthesis. Plays a major role in promoting meiotic crossing-over and is involved in maintaining the genetic stability of simple sequence repeats by correction of frameshift intermediates.