Ca⁺⁺-induced PS exposure is normal in RBCs from PLSCR1^−/− cells.

RBCs isolated from 3 each WT (■) and PLSCR1^−/− (○) mice were incubated in the presence of 1 μM A23178, and PS exposure at the times indicated was detected by the specific binding of factor Va as detailed in “Materials and methods.” Data shown are representative of 3 experiments so performed.