trifluoperazine ( 30 microm ) and calmodulin-binding protein ( 20 micrograms/ml ) inhibited about 50 % of the high-affinity ca2+ uptake and ( ca2+ + mg2+ ) -atpase ( ca2+-activated , mg2+-dependent atpase ) activity of these vesicles , indicating that the vesicles isolated by the procedure used retained some calmodulin from the erythrocytes .
C0001473
atpase
C0001477
ca2