following short-term activation of p60v-src , analysis of protein phosphorylations by giant two-dimensional electrophoresis revealed only very minor changes in any of the 1000 or so detectable phosphoproteins , whereas the activation of protein kinase c by a sub-optimal dose of phorbol ester significantly increased the phosphorylation of at least 10 proteins .
C0031689
phosphoproteins
C0033684
proteins