MAP2K4 Antibody

Polyclonal Antibody

MAP2K4

c Jun N terminal kinase kinase 1 antibody, C-JUN N-terminal kinase kinase 1 antibody, Dual specificity mitogen activated protein kinase kinase 4 antibody, Dual specificity mitogen-activated protein kinase kinase 4 antibody, JNK Activated Kinase 1 antibody, JNK activating kinase 1 antibody, JNK-activating kinase 1 antibody, JNKK antibody, JNKK1 antibody, MAP kinase kinase 4 antibody, Map2k4 antibody, MAPK ERK kinase 4 antibody, MAPK/ERK kinase 4 antibody, MAPKK 4 antibody, MAPKK4 antibody, MEK 4 antibody, MEK4 antibody, Mitogen activated protein kinase kinase 4 antibody, MKK 4 antibody, MKK4 antibody, MP2K4_HUMAN antibody, PRKMK4 antibody, SAPK ERK kinase 1 antibody, SAPK/ERK kinase 1 antibody, SAPKK 1 antibody, SAPKK1 antibody, SEK1 antibody, SERK1 antibody, SKK1 antibody, Stress activated protein kinase kinase 1 antibody

Synthesized peptide derived from internal of human JNKK.

Dual specificity protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Essential component of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway. With MAP2K7/MKK7, is the one of the only known kinase to directly activate the stress-activated protein kinase/c-Jun N-terminal kinases MAPK8/JNK1, MAPK9/JNK2 and MAPK10/JNK3. MAP2K4/MKK4 and MAP2K7/MKK7 both activate the JNKs by phosphorylation, but they differ in their preference for the phosphorylation site in the Thr-Pro-Tyr motif. MAP2K4 shows preference for phosphorylation of the Tyr residue and MAP2K7/MKK7 for the Thr residue. The phosphorylation of the Thr residue by MAP2K7/MKK7 seems to be the prerequisite for JNK activation at least in response to proinflammatory cytokines, while other stimuli activate both MAP2K4/MKK4 and MAP2K7/MKK7 which synergistically phosphorylate JNKs. MAP2K4 is required for maintaining peripheral lymphoid homeostasis. The MKK/JNK signaling pathway is also involved in mitochondrial death signaling pathway, including the release cytochrome c, leading to apoptosis. Whereas MAP2K7/MKK7 exclusively activates JNKs, MAP2K4/MKK4 additionally activates the p38 MAPKs MAPK11, MAPK12, MAPK13 and MAPK14.

Lin A., Science 268:286-290(1995).
Derijard B., Science 267:682-685(1995).
Su G.H., Cancer Res. 58:2339-2342(1998).

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Signal Transduction

Synthesized peptide derived from internal of Human JNKK.