Kinetics and steady-state properties of inactivation. (A) Time constants of inactivation show that AAGA is distinctly slower than the other isoforms. (B) Diversity of steady-state inactivation curves obtained in response to 100-ms prepulses. (C) Kinetics of recovery from inactivation at −120 mV (see inset for voltage protocol). Theory curves are single exponential relaxations (Table S2).