Glutathione C10H17N3O6S CID 124886 PubChem Glutathione reductase Sigma Aldrich Identification of GR and TrxR systems in Setaria cervi: Purification and characterization of glutathione reductase ScienceDirect 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 Measurement of Glutathione as a Tool for Oxidative Stress Studies by High Performance Liquid Chromatography Glutathione C10H17N3O6S CID 124886 PubChem