MAP2K4

Main article: Mitogen-activated protein kinase kinase

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Species	Human	Mouse
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View/Edit Human

Dual specificity mitogen-activated protein kinase kinase 4 is an enzyme that in humans is encoded by the MAP2K4 gene.

This gene encodes a dual specificity protein kinase that belongs to the Ser/Thr protein kinase family. This kinase is a direct activator of MAP kinases in response to various environmental stresses or mitogenic stimuli. It has been shown to activate MAPK8/JNK1, MAPK9/JNK2, and MAPK14/p38, but not MAPK1/ERK2 or MAPK3/ERK1. This kinase is phosphorylated, and thus activated by MAP3K1/MEKK. The knockout studies in mice suggested the roles of this kinase in mediating survival signal in T cell development, as well as in the organogenesis of liver.

Interactions

MAP2K4 has been shown to interact with FLNC, MAPK8, MAPK8IP3 and AKT1.

Further reading

• Dérijard B, Raingeaud J, Barrett T, et al. (1995). "Independent human MAP-kinase signal transduction pathways defined by MEK and MKK isoforms". Science. 267 (5198): 682–5. Bibcode:1995Sci...267..682D. doi:10.1126/science.7839144. PMID 7839144.
• Yan M, Dai T, Deak JC, et al. (1995). "Activation of stress-activated protein kinase by MEKK1 phosphorylation of its activator SEK1". Nature. 372 (6508): 798–800. Bibcode:1994Natur.372..798Y. doi:10.1038/372798a0. PMID 7997270.
• Salmeron A, Ahmad TB, Carlile GW, et al. (1996). "Activation of MEK-1 and SEK-1 by Tpl-2 proto-oncoprotein, a novel MAP kinase kinase kinase". EMBO J. 15 (4): 817–26. PMC 450280. PMID 8631303.
• Gale NW, Holland SJ, Valenzuela DM, et al. (1996). "Eph receptors and ligands comprise two major specificity subclasses and are reciprocally compartmentalized during embryogenesis". Neuron. 17 (1): 9–19. doi:10.1016/S0896-6273(00)80276-7. PMID 8755474.
• White RA, Hughes RT, Adkison LR, et al. (1996). "The gene encoding protein kinase SEK1 maps to mouse chromosome 11 and human chromosome 17". Genomics. 34 (3): 430–2. doi:10.1006/geno.1996.0309. PMID 8786147.
• Nishina H, Fischer KD, Radvanyi L, et al. (1997). "Stress-signalling kinase Sek1 protects thymocytes from apoptosis mediated by CD95 and CD3". Nature. 385 (6614): 350–3. Bibcode:1997Natur.385..350N. doi:10.1038/385350a0. PMID 9002521.
• Marti A, Luo Z, Cunningham C, et al. (1997). "Actin-binding protein-280 binds the stress-activated protein kinase (SAPK) activator SEK-1 and is required for tumor necrosis factor-alpha activation of SAPK in melanoma cells". J. Biol. Chem. 272 (5): 2620–8. doi:10.1074/jbc.272.5.2620. PMID 9006895.
• Deacon K, Blank JL (1997). "Characterization of the mitogen-activated protein kinase kinase 4 (MKK4)/c-Jun NH2-terminal kinase 1 and MKK3/p38 pathways regulated by MEK kinases 2 and 3. MEK kinase 3 activates MKK3 but does not cause activation of p38 kinase in vivo". J. Biol. Chem. 272 (22): 14489–96. doi:10.1074/jbc.272.22.14489. PMID 9162092.
• Hirai S, Katoh M, Terada M, et al. (1997). "MST/MLK2, a member of the mixed lineage kinase family, directly phosphorylates and activates SEK1, an activator of c-Jun N-terminal kinase/stress-activated protein kinase". J. Biol. Chem. 272 (24): 15167–73. doi:10.1074/jbc.272.24.15167. PMID 9182538.
• Teng DH, Perry WL, Hogan JK, et al. (1997). "Human mitogen-activated protein kinase kinase 4 as a candidate tumor suppressor". Cancer Res. 57 (19): 4177–82. PMID 9331070.
• Xu S, Cobb MH (1998). "MEKK1 binds directly to the c-Jun N-terminal kinases/stress-activated protein kinases". J. Biol. Chem. 272 (51): 32056–60. doi:10.1074/jbc.272.51.32056. PMID 9405400.
• Guan Z, Buckman SY, Pentland AP, et al. (1998). "Induction of cyclooxygenase-2 by the activated MEKK1 --> SEK1/MKK4 --> p38 mitogen-activated protein kinase pathway". J. Biol. Chem. 273 (21): 12901–8. doi:10.1074/jbc.273.21.12901. PMID 9582321.
• Su GH, Hilgers W, Shekher MC, et al. (1998). "Alterations in pancreatic, biliary, and breast carcinomas support MKK4 as a genetically targeted tumor suppressor gene". Cancer Res. 58 (11): 2339–42. PMID 9622070.
• Yang J, New L, Jiang Y, et al. (1998). "Molecular cloning and characterization of a human protein kinase that specifically activates c-Jun N-terminal kinase". Gene. 212 (1): 95–102. doi:10.1016/S0378-1119(98)00158-9. PMID 9661668.
• Widegren U, Jiang XJ, Krook A, et al. (1998). "Divergent effects of exercise on metabolic and mitogenic signaling pathways in human skeletal muscle". FASEB J. 12 (13): 1379–89. PMID 9761781.
• Xia Y, Wu Z, Su B, et al. (1998). "JNKK1 organizes a MAP kinase module through specific and sequential interactions with upstream and downstream components mediated by its amino-terminal extension". Genes Dev. 12 (21): 3369–81. doi:10.1101/gad.12.21.3369. PMC 317229. PMID 9808624.
• Chan-Hui PY, Weaver R (1999). "Human mitogen-activated protein kinase kinase kinase mediates the stress-induced activation of mitogen-activated protein kinase cascades". Biochem. J. 336 (3): 599–609. doi:10.1042/bj3360599. PMC 1219910. PMID 9841871.
• Merritt SE, Mata M, Nihalani D, et al. (1999). "The mixed lineage kinase DLK utilizes MKK7 and not MKK4 as substrate". J. Biol. Chem. 274 (15): 10195–202. doi:10.1074/jbc.274.15.10195. PMID 10187804.
• Orth K, Palmer LE, Bao ZQ, et al. (1999). "Inhibition of the mitogen-activated protein kinase kinase superfamily by a Yersinia effector". Science. 285 (5435): 1920–3. doi:10.1126/science.285.5435.1920. PMID 10489373.