V2EX lyase

Lyase

释义 Definition

Lyase(裂解酶):一类酶,主要通过非水解、非氧化还原方式断裂化学键,常形成或消除双键;也可催化将基团加成到双键上。它常见于氨基酸代谢、糖代谢与各种脱羧/脱水反应中。(该词在生物化学中也可指“裂解酶类”这一酶学分类。)

发音 Pronunciation

/la.es/

例句 Examples

The enzyme is a lyase that breaks a carboncarbon bond.
这种酶是一种裂解酶,能够断裂碳碳键。

In the pathway, a specific lyase removes water from the substrate to form a double bond, which then drives the next reaction forward.
在这条代谢通路中,某种特定的裂解酶会从底物中去除水分子形成双键,从而推动下一步反应进行。

词源 Etymology

lyase 来自 **ly-**(与 lysis“裂解/分解”同源,源于希腊语 lysis,意为“松开、分解”)加上表示酶类名称的后缀 -ase。整体含义即“促使裂解/断裂反应的酶”。

相关词 Related Words

文献与作品 Literary Works

  • Enzyme Nomenclature(IUBMB 国际酶学命名与分类标准):在酶分类(EC 4)中系统定义并列举 Lyases
  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》):讲解酶分类与代谢实例时多次使用 lyase
  • Biochemistry(Stryer,《斯特赖尔生物化学》):在代谢途径与酶催化章节中出现 lyase,用于说明非水解裂解反应。
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