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proenzyme

American

[proh-en-zahym] / proʊˈɛn zaɪm /

noun

Biochemistry.

any of a group of proteins that are converted to active enzymes by partial breakdown, as by the action of an acid or other enzyme.

proenzyme British

/ prəʊˈɛnzaɪm /

noun

the inactive form of an enzyme; zymogen

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of proenzyme

First recorded in 1895–1900; pro- ¹ + enzyme

Example Sentences

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proenzyme

Chief cells—Located primarily in the basal regions of gastric glands are chief cells, which secrete pepsinogen, the inactive proenzyme form of pepsin.

From Textbooks ● Jun. 19, 2013

When in this stage, the compound is known as "proenzyme," or "zymogen."

From The Chemistry of Plant Life by Thatcher, Roscoe Wilfred

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023