Fig. 2.
Time courses of [32P]PtdIns, [32P]PtdIns(4)P, [32P]PtdIns(4,5)P2, and [32P]PtdOH production and effects of released ADP in TRAP-stimulated platelets. Time courses of [32P]-labeling of PtdIns, PtdIns(4)P, PtdIns(4,5)P2, and PtdOH in [32P]-labeled platelets activated by 40 μmol/L TRAP in the absence (•) or the presence (○) of 1 U/mL apyrase. Radioactivity incorporated into various phospholipids was quantified using HPLC as in Fig 1. Results are representative of 3 experiments with similar results.