Mitogen-activated protein kinase kinase kinase 4
Definition:
Component of a protein kinase signal transduction cascade. Activates the CSBP2, P38 and JNK MAPK pathways, but not the ERK pathway. Specifically phosphorylates and activates MAP2K4 and MAP2K6.
References:
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[1]. Hiroaki Mita, et al. Regulation of MTK1/MEKK4 kinase activity by its N-terminal autoinhibitory domain and GADD45 binding. Mol Cell Biol. 2002 Jul;22(13):4544-55. [Content Brief]
[2]. M Takekawa, et al. A human homolog of the yeast Ssk2/Ssk22 MAP kinase kinase kinases, MTK1, mediates stress-induced activation of the p38 and JNK pathways. EMBO J. 1997 Aug 15;16(16):4973-82. [Content Brief]
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