Selenoproteins and the Thioredoxin System Springer Nature Link Thioredoxin: an antioxidant, a therapeutic target and a possible biomarker Pediatric Research Structure and mechanism of mammalian thioredoxin reductase: The active site is a redox active selenolthiol selenenylsulfide formed from the conserved cysteine selenocysteine sequence PNAS Structure and mechanism of mammalian thioredoxin reductase: The active site is a redox active selenolthiol selenenylsulfide formed from the conserved cysteine selenocysteine sequence PNAS Thioredoxin a fold for all reasons: Structure Targeting thioredoxin glutathione reductase as a potential antischistosomal drug target ScienceDirect