Reactome: A Curated Pathway Database

MSH2:MSH3 recruits MLH1:PMS2 to mismatch and interacts with PCNA

Stable Identifier
R-HSA-5358519
Type
Reaction
Species
Homo sapiens
Compartment
Synonyms
MutSbeta recruits MutLalpha to mismatch and interacts with PCNA
Locations in the PathwayBrowser
Summation

After being activated by an insertion/deletion loop (IDL), MSH2:MSH3 (MutSbeta) recruits MLH1:PMS2 (MutLalpha) (Iyer et al. 2010, Pluciennik et al. 2013) and interacts with PCNA (Iyer et al. 2010). As inferred from yeast, more than one molecule of MLH1:PMS2 may bind per molecule of MSH2:MSH3 (Hombauer et al. 2011). MLH1:PMS2 and PCNA compete for the same binding site on MSH2:MSH3 (Iyer et al. 2010). The interaction with PCNA determines which strand of DNA will serve as template and which strand will be repaired (Zhang et al. 2005, and inferred from MSH2:MSH6).

Literature References
Participants
Participant Of
Inferred From