Frontiers Assigning function to active site residues of Schistosoma mansoni thioredoxin glutathione reductase from analysis of transient state reductive half reactions with variant forms of the enzyme Glutathione reductase catalytic cycle MedLink Neurology Glutathione Reductase Cycle. Glutathione Peroxidase converts H2O2 to Download Scientific Diagram RCSB PDB 3DK4: Catalytic cycle of human glutathione reductase near 1 A resolution Glutathione NADPH + H+ NADP+ FAD Pentose Phosphate Pathway Riboflavin Glutamate (Oxidized glutathione) (Reduced glutathione, a s