V2EX cyclin

Cyclin

释义 Definition

Cyclin(细胞周期蛋白):一类调控细胞周期进程的关键蛋白质,常通过与 CDK(周期蛋白依赖性激酶) 结合来“启动/推进”细胞在不同阶段(如 G1、S、G2、M)之间转换。其特点之一是在细胞周期中周期性合成与降解。在某些癌症中,cyclin 的异常表达与细胞失控增殖有关。

发音 Pronunciation

/sakln/

例句 Examples

Cyclins help control when a cell divides.
细胞周期蛋白有助于控制细胞何时分裂。

During the G1 phase, specific cyclins bind to CDKs to trigger the next steps of the cell cycle.
在 G1 期,特定的细胞周期蛋白与 CDK 结合,从而触发细胞周期的下一步进程。

词源 Etymology

cyclin 来自 cycle(循环、周期) + 蛋白名称常见后缀 -in,字面含义可理解为“与周期相关的蛋白”。之所以这样命名,是因为这类蛋白的浓度会随细胞周期阶段呈周期性变化

相关词 Related Words

文学/著作中的用例 Literary / Notable Works

  • Molecular Biology of the Cell(《细胞的分子生物学》, Alberts 等):在细胞周期调控章节系统讲解 cyclins 与 CDKs。
  • The Cell Cycle: Principles of Control(David O. Morgan):以 cyclin/CDK 为核心框架阐述细胞周期控制原理。
  • Tim Hunt 等人的诺贝尔奖相关讲座与综述(关于 cyclins 的发现与细胞周期调控):常直接讨论 cyclin 的周期性变化与功能意义。
  • Evans, Rosenthal, Youngblom, Distel & Hunt (1983) 经典论文:“Cyclin: a protein specified by maternal mRNA in sea urchin eggs that is destroyed at each cleavage division.”(首次明确提出并命名 cyclin 的代表性研究之一)。
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