[induction is the increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis; repression is the interference in synthesis of an enzyme due to the elevated level of an effector substance, usually a metabolite, whose presence would cause depression of the gene responsible for enzyme synthesis. ( CSP )]
UMLS (CSP) C0178622 Relation/PAR: gene induction/repression