Figure 4From: Subtype-specific regulation of P2X3 and P2X2/3 receptors by phosphoinositides in peripheral nociceptors PIP 2 -activated P2X2 and P2X3 currents in excised inside-out macropatches from Xenopus oocytes. The pipette solution contained ATP at 100 μM for P2X2 and at 30 μM for P2X3. The currents were evoked by voltage ramps from -100 mV to +100 mV. The traces shown were constructed by connecting the current points at -80 mV. (**, P < 0.01)Back to article page