Reactive cysteine persulfides and S polythiolation regulate oxidative stress and redox signaling PNAS Frontiers Enzymes that generate and regulate intracellular persulfides and polysulfides: mechanistic insights and inhibitors One Pot Synthesis of Glutathione Trisulfide from Oxidized Glutathione The Journal of Organic Chemistry 3 Mercaptopyruvate sulfurtransferase produces potential redox regulators cysteine and glutathione persulfide (Cys SSH and GSSH) together with signaling molecules H2S2, H2S3 and H2S Scientific Reports PRDX6 dictates ferroptosis sensitivity by directing cellular selenium utilization: Molecular Cell Enzymatic Regulation and Biological Functions of Reactive Cysteine Persulfides and Polysulfides