Ectopic suicide inhibition of thioredoxin glutathione reductase

Inhibition of Schistosoma mansoni Thioredoxin-glutathione Reductase by Auranofin

Francesco Angelucci, Ahmed A. Sayed, David L. Williams, Giovanna Boumis, Maurizio Brunori, Daniela Dimastrogiovanni, Adriana E. Miele, Frida Pauly, and Andrea Bellelli From the Department of Biochemical Sciences “A. Rossi Fanelli,” “Sapienza” University of Rome and Istituto Pasteur-Fondazione Cenci Bolognetti, P. Le Aldo Moro 5, 00185 Rome, Italy, the Department of Biological Sciences, Illinois...

Mammalian Selenoprotein Thioredoxin-glutathione Reductase

Hepatocyte Hyperproliferation upon Liver-Specific Co-disruption of Thioredoxin-1, Thioredoxin Reductase-1, and Glutathione Reductase

Energetic nutrients are oxidized to sustain high intracellular NADPH/NADP+ ratios. NADPH-dependent reduction of thioredoxin-1 (Trx1) disulfide and glutathione disulfide by thioredoxin reductase-1 (TrxR1) and glutathione reductase (Gsr), respectively, fuels antioxidant systems and deoxyribonucleotide synthesis. Mouse livers lacking both TrxR1 and Gsr sustain these essential activities using an N...

Purification of thioredoxin, thioredoxin reductase, and glutathione reductase by affinity chromatography.

A scheme is described for the large scale purification of thioredoxin, thioredoxin reductase, and glutathione reductase. The scheme is based on an initial separation of thioredoxin from the two reductases by affinity chromatography on agarose-bound N6-(6-aminohexyl)-adenosine 2',5'-bisphosphate (agarose-2',5'-ADP). The two reductases were then separated by hydrophobic chromatography and purifie...

Inhibition of Schistosoma mansoni thioredoxin-glutathione reductase by auranofin: structural and kinetic aspects.

Schistosomiasis is a parasitic disease affecting over 200 million people currently treated with one drug, praziquantel. A possible drug target is the seleno-protein thioredoxin-glutathione reductase (TGR), a key enzyme in the pathway of the parasite for detoxification of reactive oxygen species. The enzyme is a unique fusion of a glutaredoxin domain with a thioredoxin reductase domain, which co...