V2EX sirtuin

Sirtuin

释义 Definition

sirtuin(沉默信息调节蛋白/长寿蛋白家族):一类依赖 NAD 的酶(多为去乙酰化酶或去酰化酶),参与调控基因表达、能量代谢、应激反应、炎症与衰老相关过程。在哺乳动物中常以 SIRT1SIRT7 表示不同成员。(该词也可指某一个具体的 sirtuin 蛋白。)

发音 Pronunciation

/stjun/

例句 Examples

Sirtuins help cells respond to stress.
沉默信息调节蛋白帮助细胞应对应激。

Researchers found that activating a sirtuin pathway can improve metabolic health in animal models.
研究人员发现,在动物模型中激活某些 sirtuin 通路可以改善代谢健康。

词源 Etymology

sirtuin 来自 Sir2Silent information regulator 2,最早在酵母中发现的“沉默信息调节因子2”基因/蛋白)与后缀 -uin(用于构成蛋白/基因家族名称的拼合形式)。因此 sirtuin 指“Sir2 相关的一类蛋白/酶家族”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Lifespan: Why We Ageand Why We Don’t Have To(David A. Sinclair, 2019)
  • The End of Aging: The Scientific Approach to a Longer and Healthier Life(Aubrey de Grey & Michael Rae, 2007)
  • Ageless: The New Science of Getting Older Without Getting Old(Andrew Steele, 2021)
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