7.1.1.1 5.5 - H91E mutant enzyme, optima for forward reaction below pH 5.5, 7% of wild-type enzyme activity at pH 6.0 392664 7.1.1.1 6 - reverse reaction catalyzed by H91E mutant enzyme, 20% of wild-type enzyme activity 392664 7.1.1.1 6.3 - pH optimum for the reduction of thio-NADP+ by NADH 733371 7.1.1.1 6.5 - - 660435 7.1.1.1 6.8 - - 733148 7.1.1.1 7.1 - pH optimum for the reduction of oxidized acetyl pyridine adenine dinucleotide by NADPH 733371 7.1.1.1 8 - - 742240