Phylogenetic characterization of Clonorchis sinensis proteins homologous to the sigma class glutathione transferase and their differential expression profiles ScienceDirect Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols Identification of glutathione S transferase genes by transcriptome analysis in Meteorus pulchricornis (Hymenoptera: Braconidae) and their expression patterns under stress of phoxim and cypermethrin ScienceDirect Sigma Aldrich L Glutathione Reduced (GSH), 98% Purity LabMart Limited The sigma class glutathione transferase from the liver fluke Fasciola hepatica Glutathione reduced ethyl ester = 90 TLC 92614 59 0