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Pronunciation: pro-en'zim

Definition: The precursor of an enzyme, requiring some change (usually the hydrolysis of an inhibiting fragment that masks an active grouping) to render it active; pepsinogen, trypsinogen, profibrolysin.

Synonym(s): zymogen

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.