repression

https://doi.org/10.1351/goldbook.R05304
Binding of a protein (repressor) to the operator @ST06775@ in an @O04301@ thus preventing the @T06436@ of the following structural @G02604@ into @M03857@ and consequently synthesis of protein (cf. @E02158@).
Source:
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 164 [Terms] [Paper]