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  • Title: Purification by cibacron blue F3GA dye affinity chromatography and comparison of NAD(P)H:quinone reductase (E.C.1.6.99.2) from rat liver cytosol and microsomes.
    Author: Sharkis DH, Swenson RP.
    Journal: Biochem Biophys Res Commun; 1989 Jun 15; 161(2):434-41. PubMed ID: 2500115.
    Abstract:
    The dicoumarol-sensitive NAD(P)H:quinone reductase (E.C.1.6.99.2), often referred to as DT-diaphorase, has been purified from both the cytosolic and microsomal fractions from rat liver using a novel, highly efficient, two-step purification procedure utilizing immobilized Cibacron Blue F3GA dye affinity chromatography as the principal step. Under the conditions reported here, this dye affinity resin, generally recognized as preferentially binding nucleotide-dependent proteins, was highly selective in the recovery of up to 95% of the NAD(P)H:quinone reductase directly from the cytosol as a preparation which was often greater than 90% pure. Further purification by gel exclusion chromatography resulted in pure protein preparations with final recoveries approaching 80%. Similar results were obtained during the purification of this quinone reductase activity from microsomal extracts. Evidence is presented which suggests that the enzyme isolated from each cellular fraction are highly homologous, if not identical; data are consistent with genetic evidence.
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