protein kinase activity Reactome:R-HSA-9836362 Reactome:R-HSA-9836383 Reactome:R-HSA-9836184 Reactome:R-HSA-937034 Reactome:R-HSA-5693148 GO:0004672 GO:0050222 Reactome:R-HSA-9673284 Reactome:R-HSA-975139 Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP. Reactome:R-HSA-9836515 Reactome:R-HSA-9833820 protamine kinase activity Reactome:R-HSA-9836617 Reactome:R-HSA-9835885 Reactome:R-HSA-9836435 Reactome:R-HSA-9604606 Reactome:R-HSA-9836159 Note that triphosphate is used as a phosphate donor by at least one kinase. Reactome:R-HSA-156832 Reactome:R-HSA-9836449 Reactome:R-HSA-9836404 molecular_function Reactome:R-HSA-9732753 Reactome:R-HSA-9836322 Reactome:R-HSA-9836664 kinase activity phosphotransferase activity, alcohol group as acceptor catalytic activity, acting on a protein