to test the hypothesis that this effect might result from camp-dependent phosphorylation of a ca2+ channel-associated protein , [ 3h ] nitrendipine binding was used to probe the high-affinity 1,4-dihydropyridine site in either phosphorylated or dephosphorylated sarcolemmal vesicles .
C0028127
nitrendipine
C0012315
dihydropyridine