two nadph-linked aldehyde reductases ( alcohol : nadp+ oxidoreductase , ec 1.1.1.2 ) , referred to here as aldehyde reductases i and ii , have been purified to homogeneity from human liver by using ammonium sulfate precipitation , ion-exchange chromatography , affinity chromatography and gel filtration .
C0027298
nadph
C0027312
nadp