CST, 4091S, Phospho-Met (Tyr1234/1235) (D26) Rabbit Monoclonal Antibody (Sepharose® Bead Conjugate)

Monoclonal Antibody for studying Met (Tyr1234/Tyr1235) phosphate. Validated for Immunoprecipitation. Highly specific and rigorously validated in-house, Phospho-Met (Tyr1234/1235) (D26) Rabbit Monoclonal Antibody (Sepharose^® Bead Conjugate) (CST #4091) is ready to ship. Product Usage Information Immunoprecipitation: 1:20 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol. Store at -20°C. Do not aliquot the antibodies. Protocol Available protocols: Immunoprecipitation Specificity / Sensitivity Phospho-Met (Tyr1234/1235) (D26) Rabbit Monoclonal Antibody (Sepharose Species Reactivity: Human, Mouse, Rat Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr1234/1235 of human Met. Background Met, a high affinity tyrosine kinase receptor for hepatocyte growth factor (HGF, also known as scatter factor) is a disulfide-linked heterodimer made of 45 kDa α- and 145 kDa β-subunits (1,2). The α-subunit and the amino-terminal region of the β-subunit form the extracellular domain. The remainder of the β-chain spans the plasma membrane and contains a cytoplasmic region with tyrosine kinase activity. Interaction of Met with HGF results in autophosphorylation at multiple tyrosines, which recruit several downstream signaling components, including Gab1, c-Cbl, and PI3 kinase (3). These fundamental events are important for all of the biological functions involving Met kinase activity. The addition of a phosphate at cytoplasmic Tyr1003 is essential for Met protein ubiquitination and degradation (4). Phosphorylation at Tyr1234/1235 in the Met kinase domain is critical for kinase activation. Phosphorylation at Tyr1349 in the Met cytoplasmic domain provides a direct binding site for Gab1 (5). Research studies have shown that altered Met levels and/or tyrosine kinase activities are found in several types of tumors, including renal, colon, and breast. Thus, investigators have concluded that Met is an attractive potential cancer therapeutic and diagnostic target (6,7). Alternate Names AUTS9; c-Met; DFNB97; Hepatocyte growth factor receptor; HGF receptor; HGF/SF receptor; HGFR; MET; met proto-oncogene (hepatocyte growth factor receptor); met proto-oncogene tyrosine kinase; MET proto-oncogene, receptor tyrosine kinase; oncogene MET; Proto-oncogene c-Met; RCCP2; Scatter factor receptor; SF receptor; Tyrosine-protein kinase Met Specification REACTIVITY: H M R SENSITIVITY: Endogenous MW (kDa): 145 Source/Isotype: Rabbit IgG