|Other Names||Dual specificity mitogen-activated protein kinase kinase 7, MAP kinase kinase 7, MAPKK 7, JNK-activating kinase 2, MAPK/ERK kinase 7, MEK 7, Stress-activated protein kinase kinase 4, SAPK kinase 4, SAPKK-4, SAPKK4, c-Jun N-terminal kinase kinase 2, JNK kinase 2, JNKK 2, MAP2K7, JNKK2, MEK7, MKK7, PRKMK7, SKK4|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Synonyms||JNKK2, MEK7, MKK7, PRKMK7, SKK4|
|Function||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 MAP2K4/MKK4, 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/MKK4 shows preference for phosphorylation of the Tyr residue and MAP2K7/MKK7 for the Thr residue. The monophosphorylation of JNKs on the Thr residue is sufficient to increase JNK activity indicating that MAP2K7/MKK7 is important to trigger JNK activity, while the additional phosphorylation of the Tyr residue by MAP2K4/MKK4 ensures optimal JNK activation. Has a specific role in JNK signal transduction pathway activated by proinflammatory cytokines. The MKK/JNK signaling pathway is also involved in mitochondrial death signaling pathway, including the release cytochrome c, leading to apoptosis.|
|Cellular Location||Nucleus. Cytoplasm.|
|Tissue Location||Ubiquitous; with highest level of expression in skeletal muscle. Isoform 3 is found at low levels in placenta, fetal liver, and skeletal muscle.|
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Provided below are standard protocols that you may find useful for product applications.
This protein is a dual specificityprotein kinase that belongs to the MAP kinase kinase family. Thiskinase specifically activates MAPK8/JNK1 and MAPK9/JNK2, and thiskinase itself is phosphorylated and activated by MAP kinase kinasekinases including MAP3K1/MEKK1, MAP3K2/MEKK2,MAP3K3/MEKK5, andMAP4K2/GCK. This kinase is involved in the signal transductionmediating the cell responses to proinflammatory cytokines, andenvironmental stresses.
Yoshizawa, T., et al. J. Immunol. 181(5):3252-3258(2008)Vasilevskaya, I.A., et al. Mol. Pharmacol. 74(1):246-254(2008)Tornatore, L., et al. J. Mol. Biol. 378(1):97-111(2008)
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