gs inhibited sarcolemmal ca2+-stimulated atpase ( ic50 = 3 microm ) , ca2+/mg2+ atpase which is activated by millimolar ca2+ or mg2+ ( ic50 = 3.4 microm ) , and sarcoplasmic reticulum ca2+-stimulated atpase ( ic50 = 6 microm ) .
C0001476
ca2
C0916181
sarcoplasmic reticulum ca2