Figure 4.
![Figure 4. Time course of [Ca2+]i changes and exocytosis evoked by different concentrations of UTP. (A–D) Representative time courses of [Ca2+]i changes mediated by 0.5 (A), 2 (B), 10 (C), and 100 μM UTP (D) in the absence of 1 μM FSK. (E–H) Average normalized rate of exocytosis at 0.5 (E), 2 (F), 10 (G), and 100 μM UTP (H) in the absence (black circles) or presence (red circles) of 1 μM FSK. Relative exocytosis for each condition is summarized in Table I.](https://cdn.rupress.org/rup/content_public/journal/jgp/135/5/10.1085_jgp.200910355/4/jgp_200910355_rgb_fig4.jpeg?Expires=1773475650&Signature=MmFzTh~AwBiL578n18oDVS4uy8tFSk81hdNk2sYDy~dRY4hIIf3r9fw2LUK~-xn2A7HypGI4lvppP1YjoLstx-8iawMgH1j1PV9OShCoRcL-8Ahazb~mLfATNUGGALDhs~OBqu6CL~u5e-92UzTAHTyqjUTz1j5TO23NuHnPNZtFYgaYLmrRyaQQXf5~9gyn1x0rWvEZBruYYxdIR1eN1oTe9NOLXjdr65aA-AE0v57B-4-Ji4BJZ2RVWs2sTdp~YyLjuJmR1FS9vAIns7kQxnR8hceK-nVPeZ46XhacVT-PJ6qnVAilv8ecHanja17vcHa3MbNPsh4FOZmmsJ3L6A__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Time course of [Ca2+]i changes and exocytosis evoked by different concentrations of UTP. (A–D) Representative time courses of [Ca2+]i changes mediated by 0.5 (A), 2 (B), 10 (C), and 100 μM UTP (D) in the absence of 1 μM FSK. (E–H) Average normalized rate of exocytosis at 0.5 (E), 2 (F), 10 (G), and 100 μM UTP (H) in the absence (black circles) or presence (red circles) of 1 μM FSK. Relative exocytosis for each condition is summarized in Table I.
