V2EX myristoylation

Myristoylation

释义 Definition

肉豆蔻酰化:一种常见的蛋白质脂质修饰方式,通常指把肉豆蔻酸(myristic acid,14个碳的脂肪酸)共价连接到蛋白质的N 端甘氨酸(Gly)上(多为N-肉豆蔻酰化)。它常用于帮助蛋白质定位到细胞膜、影响蛋白相互作用信号传导。(在某些语境中也可泛指更少见的其他类型肉豆蔻酰化,但最常见的是N-端修饰。)

发音 Pronunciation (IPA)

/marstlen/

例句 Examples

Myristoylation helps some proteins attach to cell membranes.
肉豆蔻酰化帮助某些蛋白质附着在细胞膜上。

In many signaling pathways, loss of myristoylation can mislocalize a kinase and weaken downstream responses.
在许多信号通路中,肉豆蔻酰化的缺失会使某种激酶定位错误,从而削弱下游反应。

词源 Etymology

myristoylation 来自 myristoyl-(肉豆蔻酰基) + -ation(“……化/过程”)。其中 myrist- 与“肉豆蔻”(myristica,与肉豆蔻酸命名相关)有关;肉豆蔻酸(myristic acid)/strong>是最早从肉豆蔻等来源中分离并命名的一种脂肪酸。该词用于描述“将肉豆蔻酰基加到分子(尤其蛋白质)上的过程”。

相关词 Related Words

文学/著作中的用例 Notable Works

  • Molecular Biology of the Cell(《细胞的分子生物学》):在蛋白质定位与膜结合相关章节中常提及 myristoylation 作为典型脂质修饰之一。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在蛋白质翻译后修饰与细胞信号相关内容中会出现 myristoylation。
  • Janeway’s Immunobiology(《简明免疫生物学/贾尼韦免疫生物学》):在免疫受体下游信号蛋白(如某些激酶家族)膜定位与修饰的讨论中可能出现该术语。
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