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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 Roscoe Wilfred Thatcher

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