Mammalian thioltransferase (glutaredoxin) and protein disulfide isomerase have dehydroascorbate reductase activity. STUDIES ON THE INTERACTION BETWEEN GLUTATHIONE AND HYPOTHALAMIC PEPTIDE HORMONES IN THE RAT BRAIN PDF) Properties of Glutathione Insulin Transhydrogenase from Beef Liver Notes: Mitochondrial transporters in pancreatic function answers from bacterial transporters memprotein Mitochondrial transhydrogenase a key enzyme in insulin secretion and, potentially, diabetes: Trends in Biochemical Sciences Molecular mechanisms of protein induced hyperinsulinaemic hypoglycaemia