Table 1. Activation parameters for recombinant HCN channels and native Ih
Channel
V1/2 (mV)
z (eq.)
n
Peak tail currents of recordings similar to those depicted in Fig. 1C were baseline subtracted and a Boltzmann function was fitted to the data (eqn (1), see Methods). *P < 0.05 when comparing to the CS-TG data with Student's t test.