the activities of adenosine 3':5'-monophosphate ( cyclic amp ) -dependent protein kinase may be partially controlled by a ubiquitous acidic heat-stable protein which inhibits the phosphotransferase reaction by interaction with the catalytic subunit of protein kinase ( walsh , d.a . et al . ( 1971 ) , j. biol . chem . 246 , 1977-1985 ) .
C0031727
phosphotransferase
C0033640
protein kinase