V2EX dephosphorylation

Dephosphorylation

释义 Definition

去磷酸化:指从蛋白质或其他分子上移除磷酸基团(phosphate group)的过程,通常由蛋白磷酸酶(phosphatase)催化;它常用于调控细胞信号传导、酶活性与蛋白功能。(该词在生物化学中也可能扩展指更广义的“脱去磷酸”的反应。)

发音 Pronunciation (IPA)

/difsfrlen/

例句 Examples

Dephosphorylation can turn off a signaling protein.
去磷酸化可以关闭(抑制)某些信号蛋白的活性。

After the stress signal faded, rapid dephosphorylation of the kinase restored the pathway to its baseline state.
当压力信号减弱后,激酶的快速去磷酸化使该通路恢复到基础状态。

词源 Etymology

由前缀 de-(表示“去除、取消”)+ phosphorylation(“磷酸化”,即加上磷酸基团的过程)构成;整体字面意思就是“把磷酸化去掉”。在现代生命科学语境中,它与“磷酸化”一起构成最常见的一对可逆调控机制。

相关词 Related Words

文学与名著用例 Literary & Notable Works

  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):在细胞信号调控章节中频繁讨论磷酸化/去磷酸化循环。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):用于解释酶调控与代谢通路中的可逆共价修饰。
  • Cell Signaling(Wendell Lim 等):以去磷酸化作为信号“关闭/复位”机制的重要例子。
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