therefore , of the major casein components , beta- and k-caseins apparently play a quite unimportant role in the overall phosphorylation of whole casein by both the protein kinases tested , while alphas1-casein itself , unlabeled by casein kinase s , accounts for no more than 20 -- 30 % of 32p incorporated in the presence of casein kinase ts .
C0031715
phosphorylation
C0033640
protein kinases