| Product description |
Mouse monoclonal antibody [3i20] to MetMet (c-Met), a high affinity receptor for hepatocyte growth factor (HGF; also known as scatter factor), is a disulfide-linked heterodimer made of 45kD alpha and 145kD beta subunits. The alpha subunit and the amino-terminal region of beta-subunit form the extracellular domain. The remainder of the beta-chain spans the plasma membrane and contains a cytoplasmic region with tyrosine kinase activity. Interaction of Met (c-Met) with HGF results in autophosphorylation at multiple tyrosines, which recruit several downstream signaling components, including Gab1, c-Cbl and PI3 kinase and is critical for all of its known biological functions. Phosphorylation of Tyr1234/1235 in the Met kinase domain is critical to kinase activation. Phosphorylation of Tyr1349 in the Met (c-Met) cytoplasmic domain provides a direct binding site for Gab1. Altered Met (c-Met) levels and/or tyrosine kinase activities were found in different tumors, especially in renal, colon and breast cancers. Thus, Met (c-Met) is an attractive therapeutic target and cancer diagnostic. |