Catalytic activity:ATP + a protein = ADP + a phosphoprotein. ,cofactor:Magnesium. ,enzyme regulation:Phosphorylated and activated by the p38 kinases and kinases in the Erk pathway. ,Function:May play a role in the response to environmental stress and cytokines. Appears to regulate transcription by phosphorylating EIF4E , thus increasing the affinity of this protein for the 7-methylguanosine-containing mRNA cap. ,PTM:Dual phosphorylation of Thr-250 and Thr-255 activates the kinase. Phosphorylation of Thr-385 activates the kinase. ,similarity:Belongs to the protein kinase superfamily. ,similarity:Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. ,similarity:Contains 1 protein kinase domain. ,subunit:Interacts with the C-terminal regions of EIF4G1 and EIF4G2. Also binds to dephosphorylated ERK1 and ERK2 , and to the p38 kinases. ,tissue specificity:Ubiquitous. ,
展开内容