Glutathione reductase was purified 34806-fold with a final yield of 85 % from the bovine kidney cortex. Some molecular and kinetic properties of purified enzyme are investigated. Product inhibition studies showed that the enzyme obeys ‘branched’ mechanism: KmNADPH 18 ± 3 μM and KmGSSG 65 ± 5 μM were determined.
Keywords: Glutathione reductase, purification, kinetics, branched mechanism