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The word enzyme (ενζυμη meaning “in yeast” in Greek), first used by Kuhne in 1877, is now well accepted to describe a biological catalyst. The majority of enzyme names today carry the suffix “-ase”—as recommended for all enzyme names by Duclaux in 1898. Proteolytic enzymes are a significant exception to this generally accepted norm. Some of them have retained the older tradition of usually ending with “-in”; for example, trypsin, chymotrypsin, papain, and subtilisin.

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On Enzyme Nomenclature and Classification

  • 章节

  • 发表日期：

    2025年

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  • Narayan S. Punekar

摘要

The word enzyme (ενζυμη meaning “in yeast” in Greek), first used by Kuhne in 1877, is now well accepted to describe a biological catalyst. The majority of enzyme names today carry the suffix “-ase”—as recommended for all enzyme names by Duclaux in 1898. Proteolytic enzymes are a significant exception to this generally accepted norm. Some of them have retained the older tradition of usually ending with “-in”; for example, trypsin, chymotrypsin, papain, and subtilisin.