V2EX ligase

Ligase

释义 Definition

Ligase(连接酶):一种酶,能催化两个分子片段的连接,通常通过形成新的化学键(常见为磷酸二酯键)。在分子生物学中最常见的是DNA连接酶,用于把DNA片段“粘”在一起。*(该词也可泛指“促连接反应的酶”这一类酶。)*

发音 Pronunciation (IPA)

/laes/

例句 Examples

DNA ligase joins Okazaki fragments during DNA replication.
DNA连接酶在DNA复制过程中连接冈崎片段。

In the cloning workflow, the ligase reaction was optimized to reduce self-ligation and increase the yield of the recombinant plasmid.
在克隆流程中,人们优化了连接酶反应,以减少载体自连并提高重组质粒的产量。

词源 Etymology

ligase 来自词根 **lig-**(意为“绑、系、连接”,与 ligament “韧带”同源),加上表示“酶/催化剂”的后缀 -ase(许多酶名都以 -ase 结尾)。因此字面意义就是“负责连接的酶”。

相关词 Related Words

文学与著作中的用例 Notable Works

  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Molecular Cloning: A Laboratory Manual(《分子克隆:实验室手册》)
  • Genes(Benjamin Lewin,《基因》)
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