cyclic amp-binding protein and cyclic amp-dependent protein kinase were solubilized with 0.5 % triton x-100 in 56 mm sodium borate , ph 8 , but 32p-labeled membrane phosphoproteins were retained in the triton-insoluble fraction , suggesting that the membrane-associated binding protein is not a primary substrate for protein kinase .
C0033684
protein
C0025252
membrane