Glutathione System from Cyanobacteria to Higher Eukaryotes Encyclopedia MDPI 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 NADPH + H+ NADP+ FAD Pentose Phosphate Pathway Riboflavin Glutamate (Oxidized glutathione) (Reduced glutathione, a s Glutathione reductase catalytic cycle MedLink Neurology