addition of 1 mm mgatp to a monolayer of permeabilized cells in a cytosolic media buffered to 150 nm ca with egta rapidly stimulates 45ca uptake , and the subsequent addition of the putative intracellular messenger inositol trisphosphate ( insp3 ) induces rapid release of 85 % ( +/- 6 % n = 6 ) of the 45ca taken up in response to atp .
C0007634
cells
C1383501
cytosolic