Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method Nature Protocols Detection of ProteinProtein Interactions Using Glutathione S Transferase (GST) Pull Down Assay Technique Springer Nature Link Item GST pull down assay figshare Figshare Transglutaminase 2 crosslinks the glutathione S transferase tag, impeding proteinprotein interactions of the fused protein Experimental & Molecular Medicine Glutathione S transferase (GST) pull down and Co immunoprecipitation Download Scientific Diagram Protein Purification Guide An Introduction to Protein Purification Methods