Figure 2.
Modulation of ASIC and DRASIC by temperature. (A) Representative recordings of human ASIC and DRASIC proton-activated current (pH 5 and 4, respectively) in Xenopus oocytes at the indicated temperatures (−60 mV). (B) Arrhenius plot of the temperature dependence of the τ of DRASIC desensitization after activation by pH 4 (mean ± SEM, n = 6) and FaNaCh desensitization after activation by addition of 10 μM FMRFamide (mean ± SEM, n = 9 or 10). τ of desensitization was determined by single-exponential fits of the desensitization phase of the transient current.