when prelabeled cells were challenged with calcium ionophore a23187 ( 2 microm ) for 5 min at 37 degrees c , each membrane-associated fraction , including both plasma membrane fractions and specific and azurophilic granule fractions , exhibited deacylation of phosphatidylinositol ( pi ) and phosphatidylcholine ( pc ) .
C0007634
cells
C0333829
azurophilic granule