Enzyme or Coenzyme

Proto-Oncogene Proteins c-met

Cell surface protein-tyrosine kinase receptors for HEPATOCYTE GROWTH FACTOR. They consist of an extracellular alpha chain which is disulfide-linked to the transmembrane beta chain. The cytoplasmic portion contains the catalytic domain and sites critical for the regulation of kinase activity. Mutations in the c-met proto-oncogene are associated with papillary renal carcinoma and other neoplasia.