V2EX silent mutation

Silent Mutation

定义 Definition

沉默突变(同义突变):一种DNA序列发生改变但不改变所编码的氨基酸的突变,因此通常不会直接改变蛋白质的一级结构(但有时仍可能影响剪接、翻译效率或mRNA稳定性等)。

发音 Pronunciation (IPA)

/salnt mjuten/

例句 Examples

A silent mutation does not change the amino acid.
沉默突变不会改变氨基酸。

Although the mutation was silent at the protein level, it still affected how efficiently the gene was translated.
尽管这种突变在蛋白质层面是“沉默”的,它仍然影响了基因翻译的效率。

词源 Etymology

silent 源自拉丁语 silere(“安静、不出声”),引申为“没有明显外在影响的”。mutation 源自拉丁语 mutare(“改变”)。合起来指“看起来不产生(蛋白质)变化的突变”。

相关词 Related Words

文学与著作 Literary Works

  • Richard Dawkins, The Selfish Gene(《自私的基因》)
  • Richard Dawkins, The Blind Watchmaker(《盲眼钟表匠》)
  • Matt Ridley, Genome(《基因组》)
  • Siddhartha Mukherjee, The Gene: An Intimate History(《基因:亲密的历史》)
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