Phospho-Raf1 (S259) Recombinant Rabbit monoclonal Antibody IgG
Fig1: Western blot analysis of Phospho-Raf1(S259) on different lysates using anti-Phospho-Raf1(S259) antibody at 1/1,000 dilution.
Lane 1: Human skeletal muscle
Lane 2: Hela
Fig2: Immunohistochemical analysis of paraffin-embedded rat skeletal muscle tissue using anti-Phospho-Raf1(S259) antibody. Counter stained with hematoxylin.
Host Species; Species ReactivityRabbit; Human, Mouse, Rat
ImmunogenSynthetic phospho-Peptide corresponding to residues surrounding Ser259 of human Raf1
Application SummaryWB, IHC
Purification; FormulationProA affinity purified; 1*TBS (pH7.4), 1%BSA, 40%Glycerol. Preservative: 0.05% Sodium Azide.; Liquid form.
ALTnamesRAF proto-oncogene serine/threonine-protein kinase, Proto-oncogene c-RAF, Raf-1
BackgroundRaf-1 is a ubiquitously expressed cytoplasmic protein with intrinsic serine/threonine kinase activity. Raf-1, or c-Raf, is the cellular homolog of v-Raf, the product of the transforming gene of the 3611 strain of murine sarcoma virus. The unregulated kinase activity of the v-Raf protein is associated with cellular transformation and mitogenesis. Raf-1 is normally suppressed by its regulatory N-terminal domain. Raf-1 is activated in response to a variety of tyrosine kinase receptors as well as in response to pp60v-Src expression. Specifically, Raf-1 is phosphorylated in the catalytic domain at Ser 338 and, to a lesser extent, Ser 339. This phosphorylation requires the co-activation of PI 3-kinase and the Ras signaling pathway. Raf-1 is also phosphorylated on Tyr 340 and 341, which induces the phosphorylation of MEK. Phosphorylation of Ser 621 is essential for the catalytic activity of Raf-1 and downregulation by c-AMP-dependent protein kinase A (PKA). PKA also phosphorylates Raf-1 on Ser 43 and Ser 259. PKA phosphorylation of Ser 259 inhibits Raf-1 and decreases the phosphorylation necessary for Raf-1 activation at Ser 338.(ET1612-87)