to find out whether this phosphorylation also occurs in vivo , the exchangeable phosphate pool of intact hepatocytes derived from phenobarbital-pretreated rats was labeled with 32pi followed by an incubation of the cells with the membrane-permeating dibutyryl-camp or with the adenylate cyclase stimulator glucagon to activate endogenous kinase .
C0031715
phosphorylation
C0031727
kinase