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.

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.