V2EX nucleocapsid

Nucleocapsid

释义 Definition

核衣壳:病毒中包裹并保护遗传物质(DNA 或 RNA)的结构,通常由核衣壳蛋白与核酸结合形成;在一些病毒里,它还会进一步被外面的包膜(envelope)包围。(该词在病毒学与免疫检测语境中很常见;也有更细的分类用法,但此处为最常见义。)

发音 Pronunciation (IPA)

/nukli.okpsd/

例句 Examples

The nucleocapsid protects the virus’s RNA.
核衣壳保护病毒的 RNA。

Researchers measured antibodies against the nucleocapsid protein to help distinguish prior infection from vaccination.
研究人员检测针对核衣壳蛋白的抗体,以帮助区分既往感染与接种疫苗后的免疫反应。

词源 Etymology

nucleo- 来自 nucleus(“细胞核/核、核心”),指核酸相关;capsid 来自 “capsule”(“荚/囊/外壳”)的构词来源,用于指病毒的蛋白外壳。合起来表示“与核酸结合的病毒壳体结构”,即“核衣壳”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Fields Virology(《菲尔兹病毒学》)在病毒结构章节中频繁讨论 nucleocapsid 的组成与功能。
  • Principles of Virology(《病毒学原理》)用于解释病毒颗粒(virion)各层结构及核衣壳蛋白的作用。
  • 有关 SARS-CoV-2 的研究论文与综述(如讨论 nucleocapsid protein / N protein 的免疫原性与检测方法)该词作为关键结构蛋白名称高频出现。
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