Fig. 2.
ATP secretion and cytosolic Ca++ elevation in response to STA2 and PMA.
ATP secretion and cytosolic Ca++ levels induced by STA2 (0.5 μM) or PMA (100 nM) were measured in parallel in the same preparation of fura 2-loaded platelets suspended in Ca++-free HEPES–saline buffer, under conditions of nonstirring. Shown are representative traces from 4 independent experiments. PLT indicates platelets.
