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首页> 外文期刊>Journal of bacteriology >A novel type of pyridine nucleotide-disulfide oxidoreductase is essential for NAD+- and NADPH-dependent degradation of epoxyalkanes by Xanthobacter strain Py2.
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A novel type of pyridine nucleotide-disulfide oxidoreductase is essential for NAD+- and NADPH-dependent degradation of epoxyalkanes by Xanthobacter strain Py2.

机译:新型的吡啶核苷酸-二硫键氧化还原酶对于黄藻菌株Py2对NAD +和NADPH依赖性的环氧烷烃降解至关重要。

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Epoxide degradation in cell extracts of Xanthobacter strain Py2 has been reported to be dependent on NAD+ and dithiols. This multicomponent system has now been fractionated. A key protein encoded by a DNA fragment complementing a Xanthobacter strain Py2 mutant unable to degrade epoxides was purified and analyzed. This NADP-dependent protein, a novel type of pyridine nucleotide-disulfide oxidoreductase, is essential for epoxide degradation. NADPH, acting as the physiological cofactor, replaced the dithiols in epoxide conversion.
机译:据报道,黄杆菌属菌株Py2的细胞提取物中的环氧降解取决于NAD +和二硫醇。现在,该多组分系统已经过分馏。纯化并分析了由互补于不能降解环氧化物的黄杆菌属菌株Py2突变体的DNA片段编码的关键蛋白。这种NADP依赖性蛋白,一种新型的吡啶核苷酸-二硫键氧化还原酶,对于环氧化物的降解至关重要。 NADPH,作为生理辅助因子,在环氧化物转化中取代了二硫醇。

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