catalytic activity:ATP + a protein = ADP + a phosphoprotein.,cofactor:Magnesium.,domain:Interacts with MBIP through the leucine-zipper motif.,function:May be an activator of the JNK/SAPK pathway. Phosphorylates beta-casein, histone 1 and myelin basic protein in vitro.,PTM:Autophosphorylated on Ser/Thr. Phosphorylated in cytosol under basal conditions and dephosphorylated when membrane-associated.,similarity:Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. MAP kinase kinase kinase subfamily.,similarity:Contains 1 protein kinase domain.,subunit:Interacts with MBIP.,tissue specificity:Highly expressed in brain and kidney.,
Cytoplasm . Cell membrane . Behaves essentially as an integral membrane protein. .
Highly expressed in brain and kidney.
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