A-Raf Proteins and Enzymes

The Raf serine/threonine kinases are effectors of Ras that function as MAP3Ks in the ERK phosphorylation cascade. Mammals express three Raf proteins: A-Raf, B-Raf, and Raf-1, also known as C-Raf. Human A-Raf is a 70 kDa protein that shares three regions with B-Raf and Raf-1: aa 14-153 which contains a Ras-binding domain, a Cys-rich domain, and a li...