EOG87Q0MH GO:0005524 37/124 ATP binding molecular_function "Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator." [ISBN:0198506732] EOG87Q0MH GO:0004674 33/124 protein serine/threonine kinase activity molecular_function "Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate." [GOC:bf] EOG87Q0MH GO:0004683 3/124 calmodulin-dependent protein kinase activity molecular_function "Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; and ATP + a protein threonine = ADP + protein threonine phosphate. These reactions require the presence of calcium-bound calmodulin." [GOC:mah, PMID:11264466] EOG87Q0MH GO:0004672 2/124 protein kinase activity molecular_function "Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP." [MetaCyc:PROTEIN-KINASE-RXN] EOG87Q0MH GO:0006468 1/124 protein phosphorylation biological_process "The process of introducing a phosphate group on to a protein." [GOC:hb]