Fig. 8.

Electron carrier requirement in dilute cytosol. Carbon chain fuel sources used in individual experiments are indicated above each panel. X-axes show control experiments and experiments with added PAP (coded bars). X-axes also show the amount of NADP⁺ added to each experiment. Y-axes show μM GSH generated from 3 mM GSSG. Reaction mixtures contained 191 ng/μl cytosolic protein and were incubated 1200 min at pH 6.9 at 37°. Data represent the mean (±SEM) of 3 separately performed experiments.