c-Kit, also known as CD117 and stem cell factor receptor, is a 145 kDa transmembrane tyrosine kinase encoded by the c-Kit proto-oncogene. c-Kit acts to regulate a variety of biological responses including cell proliferation, apoptosis, chemotaxis and adhesion. Ligand binding to the extracellular domain leads to autophosphorylation on several tyrosine residues within the cytoplasmic domain, and activation. c-Kit mutations correlate with tumor growth and progression in a variety of cancers including mast cell disease, gastrointestinal stromal tumor, acute myeloid leukemia, Ewing sarcoma, and lung cancer. Phosphorylation at tyrosine 703 of c-Kit allows binding of Grb2 and activation of the Ras-Raf-ERK1 and 2 signaling pathway.
belly-spot; C-Kit; c-kit proto-oncogene protein; CD117; ckit; dominant spotting; Dominant white spotting; Mast/stem cell growth factor receptor Kit; piebald trait protein; Proto-oncogene c-Kit; proto-oncogene tyrosine-protein kinase Kit; SCFR; soluble KIT variant 1; spotted sterile male; Steel Factor Receptor; Tyrosine-protein kinase Kit; v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene-like protein
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