V2EX connexin

Connexin

释义 Definition

Connexin(连接蛋白):一类跨膜蛋白家族,是缝隙连接(gap junction)的主要结构成分。多个connexin组装成connexon(连接子/半通道),相邻细胞的connexon对接形成通道,使离子和小分子(如Ca、cAMP等)在细胞之间直接交流。(该词也常以缩写形式出现,如 Cx43。)

发音 Pronunciation (IPA)

/knksn/

例句 Examples

Connexins help neighboring cells communicate.
连接蛋白帮助相邻细胞进行交流。

Mutations in connexin genes can disrupt gap junction signaling and contribute to hearing loss or cardiac arrhythmias.
连接蛋白基因的突变可能破坏缝隙连接信号传递,从而与听力损失或心律失常有关。

词源 Etymology

connexin 源自英语词根 connect(连接;来自拉丁语 connectere “连接在一起”)加上蛋白命名常见后缀 -in(表示“某种物质/蛋白”)。字面意思可理解为“用于连接的蛋白”,贴合其在细胞间连接与通讯中的功能。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Molecular Biology of the Cell(Alberts 等,细胞生物学经典教材)中关于缝隙连接结构与connexin家族的章节
  • Guyton and Hall Textbook of Medical Physiology(盖顿《医学生理学》)中关于细胞间通讯与心肌电耦联的相关内容
  • Beyer, E. C., Paul, D. L., & Goodenough, D. A. 等关于connexin(如Cx43)克隆与鉴定的经典研究论文(常被用作connexin研究的里程碑引用)
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