MRE11 Antibody – Rabbit

This gene encodes a nuclear protein involved in homologous recombination, telomere length maintenance, and DNA double-strand break repair. By itself, the protein has 3' to 5' exonuclease activity and endonuclease activity. The protein forms a complex with the RAD50 homolog; this complex is required for nonhomologous joining of DNA ends and possesses increased single-stranded DNA endonuclease and 3' to 5' exonuclease activities. In conjunction with a DNA ligase, this protein promotes the joining of noncomplementary ends in vitro using short homologies near the ends of the DNA fragments. This gene has a pseudogene on chromosome 3. Alternative splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

MRE11A: a nuclear protein involved in homologous recombination, telomere length maintenance, and DNA double-strand break repair. By itself, the protein has 3' to 5' exonuclease activity and endonuclease activity. The protein forms a complex with the RAD50 homolog; this complex is required for nonhomologous joining of DNA ends and possesses increased single-stranded DNA endonuclease and 3' to 5' exonuclease activities. In conjunction with a DNA ligase, this protein promotes the joining of noncomplementary ends in vitro using short homologies near the ends of the DNA fragments. Alternative splicing results in two different isoforms.

Protein type: DNA repair, damage; Deoxyribonuclease; Cell cycle regulation; DNA-binding

Chromosomal Location of Human Ortholog: 11q21

Cellular Component: nucleoplasm; chromosome, telomeric region; Mre11 complex; chromatin; cytosol; nucleus

Molecular Function: ATP-dependent DNA helicase activity; protein C-terminus binding; protein binding; nuclease activity; DNA binding; single-stranded DNA specific endodeoxyribonuclease activity; manganese ion binding; endonuclease activity; double-stranded DNA binding; 3'-5' exonuclease activity; endodeoxyribonuclease activity

Biological Process: positive regulation of kinase activity; sister chromatid cohesion; negative regulation of DNA endoreduplication; telomere maintenance via telomerase; regulation of mitotic recombination; DNA repair; DNA catabolic process, endonucleolytic; positive regulation of protein amino acid autophosphorylation; DNA duplex unwinding; double-strand break repair via nonhomologous end joining; double-strand break repair via homologous recombination; DNA recombination; cell proliferation; intra-S DNA damage checkpoint; base-excision repair; nucleotide-excision repair; mitotic cell cycle G2/M transition DNA damage checkpoint; double-strand break repair; meiotic recombination; synapsis; positive regulation of interferon type I production; innate immune response; response to DNA damage stimulus; telomere maintenance

Disease: Ataxia-telangiectasia-like Disorder 1