Catalytic activity:ATP + a protein = ADP + a phosphoprotein. ,cofactor:Magnesium. ,enzyme regulation:Activated by autophosphorylation on Thr-1400 and Thr-1412 following oligomerization. ,Function:Component of a protein kinase signal transduction cascade. Activates the ERK and JNK kinase pathways by phosphorylation of MAP2K1 and MAP2K4. Activates CHUK and IKBKB , the central protein kinases of the NF-kappa-B pathway. ,PTM:Autophosphorylated. ,similarity:Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. MAP kinase kinase kinase subfamily. ,similarity:Contains 1 protein kinase domain. ,similarity:Contains 1 RING-type zinc finger. ,similarity:Contains 1 SWIM-type zinc finger. ,subunit:Binds both upstream activators and downstream substrates in multimolecular complexes through its N-terminus. Oligomerizes after binding MAP4K2 or TRAF2. Interacts with AXIN1. ,
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