V2EX superfamily

Superfamily

释义 Definition

superfamily(名词):超科;超家族。指在生物分类学中位于“科(family)”之上的分类等级;在分子生物学/生物化学中也常指由共同进化来源、结构或功能相关的一大类蛋白质/基因“超家族”。(具体含义需看语境:分类学 vs. 蛋白/基因学。)

发音 Pronunciation

/suprfmli/

例句 Examples

The cat belongs to the Felidae family, within the superfamily Feliformia.
猫属于猫科(Felidae),其上层分类为猫型总科(Feliformia)。

Comparative genomics suggests that several enzymes in this superfamily share a conserved catalytic motif despite low overall sequence similarity.
比较基因组学表明,尽管整体序列相似度不高,这个超家族中的多种酶仍共享一个保守的催化基序。

词源 Etymology

由 **super-**(“在……之上、超越”)+ family(“家族;科”)构成,字面意思是“在科/家族之上的层级”。该词在分类学中用来表示高于“科”的等级;后来也被借用于分子生物学,表示“更大范围的同源蛋白/基因群”。

相关词 Related Words

文学与名著用例 Literary Works

  • Campbell Biology(《坎贝尔生物学》):在动物与植物系统分类章节中常用 superfamily 说明分类层级。
  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):在蛋白结构与进化相关内容中使用 superfamily 描述蛋白质超家族。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在酶与蛋白结构域/同源性讨论中出现 superfamily(如酶超家族的概念)。
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