V2EX nadph

NADPH

Definition / 定义

NADPH 是一种重要的还原型辅酶(烟酰胺腺嘌呤二核苷酸磷酸的还原形式),在细胞内主要作为电子与氢的供体,为多种合成代谢(如脂肪酸、胆固醇合成)和抗氧化防御(如维持谷胱甘肽还原态)提供还原力;在光合作用的光反应中也会大量生成。它与 NADP 相互转化。(在不同语境中也可泛指相关的“还原当量”。)

Pronunciation / 发音

/n.e.di.piet/

Examples / 例句

Cells use NADPH to build fatty acids.
细胞利用 NADPH 来合成脂肪酸。

During oxidative stress, NADPH helps regenerate reduced glutathione, protecting proteins from damage.
在氧化应激时,NADPH 有助于再生还原型谷胱甘肽,从而保护蛋白质免受损伤。

Etymology / 词源

NADPH 是缩写:NADP 来自 nicotinamide adenine dinucleotide phosphate(烟酰胺 + 腺嘌呤 + 二核苷酸 + 磷酸),末尾的 H 表示“携带氢/还原态”(相对氧化态 NADP 而言)。该命名反映了它在氧化还原反应中“携带电子/氢”的功能。

Related Words / 相关词

Literary Works / 文学作品

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • Campbell Biology(《坎贝尔生物学》)
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