CST, 27884S, PMS2 (E9U4P) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying PMS2. Validated for Western Blotting,Immunoprecipitation,Immunofluorescence (Immunocytochemistry). Available in 2 sizes. Highly specific and rigorously validated in-house, PMS2 (E9U4P) Rabbit Monoclonal Antibody (CST #27884) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 Immunofluorescence (Immunocytochemistry): 1:1600 - 1:6400 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunofluorescence (Immunocytochemistry) Specificity / Sensitivity PMS2 (E9U4P) Rabbit Monoclonal Antibody recognizes endogenous levels of total PMS2 protein. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Asn570 of human PMS2 protein. Background DNA mismatch repair (MMR), a conserved process for detecting and correcting errors made during DNA synthesis, is crucial to the maintenance of genomic integrity (1). In prokaryotes, a MutS homodimer recruits a MutL homodimer to sites of DNA mismatches. In eukaryotes, six MutS homologues (MSH1-6) and four MutL homologues (MLH1, PMS2, PMS1, and MLH3) have been identified. Heterodimers composed of two MutL homologues detect distinct DNA mismatch lesions, and heterodimers composed of two MutS homologues perform the repair (2). Other factors required for MMR in eukaryotes are EXO1, PCNA, RFC, RPA, DNA polymerases, and DNA ligases (1). Microsatellite instability (MSI) is a predisposition to genetic mutation resulting from MMR deficiency (dMMR). High MSI (MSI-H) arising from dMMR results in Lynch syndrome, also known as hereditary non-polyposis colorectal cancer (HNPCC). Lynch syndrome is associated with colon cancer, as well as other human cancers (3). MSI and dMMR are strongly associated with tumor responsiveness to immune checkpoint blockade (4,5). MSI status can be determined through PCR amplification of microsatellite markers and/or immunohistochemical detection of MMR proteins MLH1, PMS2, MSH2, and MSH6. The absence of expression of any of these MMR proteins indicates dMMR (3). Alternate Names DNA mismatch repair protein PMS2; H_DJ0042M02.9; HNPCC4; Mismatch repair endonuclease PMS2; MLH4; PMS1 homolog 2, mismatch repair protein; PMS1 homolog 2, mismatch repair system component; PMS1 protein homolog 2; PMS2; PMS2 postmeiotic segregation increased 2; PMS2 postmeiotic segregation increased 2 (S. cerevisiae); PMS2CL; PMSL2; postmeiotic segregation increased 2 nirs variant 6 Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 110 Source/Isotype: Rabbit IgG