Why is disulfide bond formation considered an oxidation-reduction reaction and not a condensation reaction?
Behavior of the E–E’ Bonds (E, E’ = S and Se) in Glutathione Disulfide and Derivatives Elucidated by Quantum Chemical Calculations with the Quantum Theory of Atoms-in-Molecules Approach
Gluthione reacts with NADPH, H plus and FADH2 to produce NADP plus and two molecules of reduced glutathione.