V2EX multiple sequence alignment

Multiple Sequence Alignment

释义 Definition

多序列比对:一种生物信息学方法,用来把三条或以上的 DNA、RNA 或蛋白质序列按相似性进行对齐,以识别保守区域、推断同源关系,并辅助构建系统发育树或进行功能/结构预测。(也常简写为 MSA

发音 Pronunciation (IPA)

/mltpl sikwns lanmnt/

例句 Examples

We used multiple sequence alignment to compare the protein sequences.
我们使用多序列比对来比较这些蛋白质序列。

After performing multiple sequence alignment, the conserved motifs suggested the genes share a common ancestor, supporting the phylogenetic analysis.
完成多序列比对后,保守基序提示这些基因具有共同祖先,从而支持了系统发育分析。

词源 Etymology

该术语由三部分组成:multiple(多个)+ sequence(序列)+ alignment(对齐/比对)。其中 alignment 原意是“排成一线、对齐”,在计算与生物信息学语境中引申为把序列按规则插入空位(gap)以实现“最合理的对应关系”。随着 20 世纪后期分子生物学与计算方法的发展,“多序列比对”成为比较基因/蛋白家族与研究进化关系的核心概念之一。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Biological Sequence Analysis: Probabilistic Models of Proteins and Nucleic Acids(Durbin, Eddy, Krogh, Mitchison)
  • Bioinformatics and Functional Genomics(Jonathan Pevsner)
  • “MUSCLE: multiple sequence alignment with high accuracy and high throughput”(Edgar, 2004)
  • “Clustal W: improving the sensitivity of progressive multiple sequence alignment…”(Thompson, Higgins, Gibson, 1994)
  • Fundamentals of Molecular Evolution(Dan Graur 等)
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