V2EX pka

PKA

释义 Definition

PKA 通常指 Protein Kinase A(蛋白激酶A):一种在细胞信号传导中非常重要的酶,常由 cAMP(环磷酸腺苷) 激活,并通过给蛋白质加上磷酸基团(磷酸化)来调控细胞活动。
(注:在其他语境中,PKA 也可能是别的缩写,但在生物化学与细胞生物学里最常见的是“蛋白激酶A”。)

发音 Pronunciation

/pikee/

例句 Examples

PKA is activated by cAMP.
PKA 会被 cAMP 激活。

In many signaling pathways, PKA phosphorylates target proteins to change gene expression and cell behavior.
在许多信号通路中,PKA 会磷酸化靶蛋白,从而改变基因表达与细胞行为。

词源 Etymology

PKA 来自英文科学术语的首字母缩写:Protein(蛋白)+ Kinase(激酶)+ A(A 型/一类的命名)。其中 kinase 表示“催化磷酸化反应的酶”,因此 Protein Kinase A 可直译为“蛋白激酶A”。

相关词 Related Words

文学与作品 Literary Works

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