the synthetic peptide , asp-asp-asp-glu-glu-ser-ile-thr-arg-arg , derived from the phosphorylation site of casein kinase-1 ( ck-1 ) in beta-casein a ( 2 ) , is readily phosphorylated by ck-1 , but not by casein kinase-2 ( ck-2 ) , cyclic amp-dependent protein kinase , protein kinase c , phosphorylase kinase and protein kinase fa .
C0031713
phosphorylase kinase
C0033640
protein kinase