Anti-Raf-1 Antibody, clone AM223, rabbit monoclonal

The Raf proteins (Raf-1, A-Raf, B-Raf) are Ser/Thr kinases with homology to the PKC family, containing an N-terminal regulatory domain and a c-terminal catalytic domain. Members of the Raf family bind to activated Ras GTPase, which results in Raf translocation to the plasma membrane and activation. Activated Raf proteins phosphorylate MEKs, and are therefore the principle transducers of signals from Ras to MAP kinase. In addition to its role in mitogenesis, Raf-1 may play a role in regulation of apoptosis and cell cycle progression. Activation of Raf-1 involves phosphorylation of Ser338/339 and Tyr340/341. Activating mutations of B-Raf that disrupt its auto-inhibition loop have been implicated in a number of cancers, including melanoma and colon cancer.