Fig. 3.
The light intensity dependence of the proton conductivity of the ATP synthase (gH+). Estimates of gH+ in Wt and pgr5 from 26 to 216 μmol photons m-2s-1 were obtained by taking the inverse of the time constant for ECS decay during a 300-ms dark perturbation of steady-state conditions. Conditions and symbols are as in Fig. 1. Error bars represent SE for n = 3–6.