the inactive complex , but not the isolated catalytic subunit , can be activated by the protein kinase fa ( vandenheede , j.r. , yang , s.-d. , goris , j. , and merlevede , w. ( 1980 ) j. biol . chem . 255 , 11768-11774 ) , which causes the simultaneous phosphorylation of inhibitor 2 and conversion of the catalytic subunit to an active conformation .
C0033640
protein kinase
C0031715
phosphorylation