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inducer

Pronunciation: in-dus'er

Definition: A molecule, usually a substrate of a specific enzyme pathway, that combines with and deactivates an active repressor (produced by a regulator gene); this allows an operator gene previously repressed to activate the structural genes controlled by it to result in enzyme production; a homeostatic mechanism for regulating enzyme production in an inducible enzyme system.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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