the activity of soluble protein kinase ( atp : protein phosphotransferase , ec 2.7.1.37 ) and pattern of nuclear protein phosphorylation was monitored in cultured rat pineal glands during the induction of serotonin n-acetyltransferase ( acetyl-coa : serotonin n-acetyltransferase ; ec 2.3.1.5 ) by l-isoproterenol .
C0033640
protein phosphotransferase
C0031715
phosphorylation