Fig. S4.

RPRFa potentiates ASIC3-like currents in DRG neurons. (A) Representative current traces illustrating potentiation of ASIC3-like currents (τ < 500 ms) in DRG neurons by pre- and coapplication of 50 or 10 μM RPRFa (red bars). Activation was with pH 6.3 (black bars). (B) Quantification of currents 10 s after activation, normalized to the respective peak currents. Note that the ASIC3-like currents are probably heterogenous in DRG neurons, because they may comprise homomeric and different heteromeric ASIC3-containing channels (n = 5). *P < 0.05 (Student’s t test).