Glutathione reductase contains the following prosthetic group:: (A) FAD, (B) NAD, (C) ATP, (D) None of the above
Answer is A. Glutathione reductase contains a flavoprotein containing FAD. Reduced glutathione removes H2O2 in a reaction catalyzed by glutathione peroxidase, an enzyme that contains the selenium analogue of cysteine (selenocysteine) at the active site. Ref: Harper 28th edition, chapter 21.