V2EX connexon

Connexon

释义 Definition

connexon(连接子/间隙连接半通道):细胞膜上的一种蛋白质通道复合体,通常由6个连接蛋白(connexins)组成,嵌在一个细胞的膜上;当两个细胞各自的connexon对接时,会形成间隙连接(gap junction),让离子和小分子在细胞之间直接通过。(该词多用于细胞生物学/生理学语境)

发音 Pronunciation (IPA)

/knk.sn/

词源 Etymology

来自拉丁语词根 connect-(连接) 的构词背景,加上表示结构单位的后缀化形式,指“用于连接的通道/结构单元”。在生物学中专指构成细胞间连接通道的“半通道”复合体。

例句 Examples

A connexon is made of six connexin proteins.
一个connexon由六个连接蛋白组成。

When two connexons align between neighboring cells, they form a gap junction channel that allows ions and small metabolites to pass directly from one cell to another.
当相邻细胞之间的两个connexon对接排列时,它们会形成间隙连接通道,使离子和小代谢物能够从一个细胞直接通过到另一个细胞。

相关词 Related Words

文学与经典著作 Literary Works

  • Molecular Biology of the Cell(《细胞的分子生物学》)中在讲解细胞连接与细胞间通讯时会出现 connexon/gap junction 相关术语。
  • Essential Cell Biology(《细胞生物学精要》)在介绍间隙连接结构与功能时使用该词。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)在膜蛋白与细胞通讯相关章节中常提到 connexins/connexons
  • The Cell: A Molecular Approach(《细胞:分子方法》)讨论细胞间信号与通道连接时包含该术语。
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