... oxidation.By contrast, the results of the present study showthat AnBnGAPDH isoforms, representing the majorisoforms of photosynthetic GAPDH in chloroplasts of higher plants, though being ... [20]. On the other hand, the activity of the purified recombinant C153S mutantwas similar to that of the wild-type protein (data notshown), and the kinetics of inactivation in the presence of 1 ... A8B8-GAP-DH. We examined the effect of these modifications on the enzyme activities, their reversibility in the presence of reductants, and the protective effect of the substrateBPGA and cofactors. Glutathionylation...