Frontiers Assigning function to active site residues of Schistosoma mansoni thioredoxin glutathione reductase from analysis of transient state reductive half reactions with variant forms of the enzyme Glutathione Reductase ammonium sulfate suspension, main 100 300units mg protein biuret 9001 48 3 Glutathione Reductase buffered aqueous solution, = 10units mg protein, Escherichia coli 9001 48 3 Glutathione Reductase Kit, MAK535, 100 Tests, Sigma Aldrich Glutathione Reductase from wheat germ Type II, 0.08 units mg protein Sigma G6004