a calcium-activated and phospholipid-dependent protein kinase ( protein kinase c ) catalyzes the phosphorylation of both insoluble microsomal ( mr approximately 100,000 ) and purified soluble ( mr = 53,000 ) 3-hydroxy-3-methylglutaryl coenzyme a reductase .
C0033640
protein kinase
C0031715
phosphorylation