NCBI Accession #
NP_566804.3
NCBI GenBank Nucleotide #
NM_113607.4
NCBI Official Full Name
MUTS homolog 2
NCBI Official Symbol
MSH2
NCBI Official Synonym Symbols
ATMSH2; MUTS homolog 2
NCBI Protein Information
MUTS homolog 2
NCBI Summary
Encodes a DNA mismatch repair homolog of human MutS gene, MSH6. MSH2 is involved in maintaining genome stability and repressing recombination of mismatched heteroduplexes.There are four MutS genes in Arabidopsis, MSH2, MSH3, MSH6, and MSH7, which all act as heterodimers and bind to 51-mer duplexes. MSH2 has different binding specificity to different mismatches in combination with MSH3, MSH6, or MSH7.
UniProt Synonym Gene Names
AtMSH2
UniProt Protein Name
DNA mismatch repair protein MSH2
UniProt Synonym Protein Names
MutS protein homolog 2
UniProt Primary Accession #
O24617
UniProt Secondary Accession #
Q9SQ60; Q9ZR93
UniProt Related Accession #
O24617
UniProt Comments
Component of the post-replicative DNA mismatch repair system (MMR). Forms three different heterodimers: MutS alpha (MSH2-MSH6 heterodimer), MutS beta (MSH2-MSH3 heterodimer) and MutS gamma (MSH2-MSH7 heterodimer) which binds to DNA mismatches thereby initiating DNA repair. MutS alpha and MutS beta recognize single base mismatches and trinucleotide insertion-deletion loops (IDL) in the DNA. MutS gamma recognizes specifically the T/G single base mismatch. Plays a role in DNA homologous recombination repair and has a broad range of anti-recombination effects. Can suppress recombination between divergent direct repeats in somatic cells and possesses an anti-recombination meiotic effect. Is involved in a UV-B-induced DNA damage response pathway.