addition of gtp ( or its analogs 5'-guanylylimidodiphosphate and guanosine-5'-o- [ 3-thiotriphosphate ] ) or sodium fluoride ( in the presence or absence of gtp or its analogs ) failed to induce 45ca2+ flux into proteoliposomes , suggesting that the uptake of 45ca2+ was receptor , and not g-protein , related .
C0079469
guanosine-5
C0018353
gtp