MSH2 Antibodies

Target Information

Component of the post-replicative DNA mismatch repair system (MMR). Forms two different heterodimers: MutS alpha (MSH2-MSH6 heterodimer) and MutS beta (MSH2-MSH3 heterodimer) which binds to DNA mismatches thereby initiating DNA repair. When bound, heterodimers bend the DNA helix and shields approximately 20 base pairs. MutS alpha recognizes single base mismatches and dinucleotide insertion-deletion loops (IDL) in the DNA. MutS beta recognizes larger insertion-deletion loops up to 13 nucleotides long. After mismatch binding, MutS alpha or beta forms a ternary complex with the MutL alpha heterodimer, which is thought to be responsible for directing the downstream MMR events, including strand discrimination, excision, and resynthesis. Recruits DNA helicase MCM9 to chromatin which unwinds the mismatch containg DNA strand. ATP binding and hydrolysis play a pivotal role in mismatch repair functions. The ATPase activity associated with MutS alpha regulates binding similar to a molecular switch: mismatched DNA provokes ADP-- Belongs to the DNA mismatch repair MutS family. Ubiquitously expressed. 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.

Alternate Names

COCA1; DNA mismatch repair protein Msh2; DNA mismatch repair protein Msh2 transcript; FCC1; hMSH2; HNPCC; HNPCC1; LCFS2; MSH2; mutS homolog 2; mutS homolog 2, colon cancer, nonpolyposis type 1; mutS homolog 2, colon cancer, nonpolyposis type 1 (E. coli); MutS protein homolog 2