activation of endogenous calcium- and phospholipid-dependent protein kinase c in the cytosol of a431 cells in a cell-free system resulted in the enhanced phosphorylation of pp27 , pp34 , and pp80 but not of pp17 while exogenous addition of the catalytic subunit of cyclic adenosine 3':5'-monophosphate-dependent protein kinase to cytosol preparations resulted in the phosphorylation of pp17 , pp27 , and pp34 , but not of pp80 .
C0033640
protein kinase
C0031715
phosphorylation