active repressor

ac·tive re·pres·sor

1. a repressor that combines directly with an operator gene to repress the operator and its structural genes, thus repressing protein synthesis; an active repressor may be repressed by an inducer, with resulting protein synthesis;
2. a homeostatic mechanism for regulation of inducible enzyme systems.
Farlex Partner Medical Dictionary © Farlex 2012

ac·tive re·pres·sor

(ak'tiv rĕ-pres'ŏr)
A repressor that combines directly with an operator gene to repress the operator and its structural genes, thus repressing protein synthesis; may be repressed by an inducer, with resulting protein synthesis; a homeostatic mechanism for regulation of inducible enzyme systems.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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We have to be ready to defy a government that has become an active repressor, and this means putting a greater emphasis on civil libertarian issues.

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