Regulator Gene (Noun)
Meaning
A gene that produces a repressor substance that inhibits an operator gene.
Classification
Nouns denoting body parts.
Examples
- The regulator gene plays a crucial role in controlling the expression of the lac operon in E. coli bacteria.
- A specific repressor protein encoded by the regulator gene binds to the operator gene, blocking RNA polymerase from transcribing the downstream genes.
- The tryptophan regulator gene is a classic example of a gene that regulates the expression of an operon involved in amino acid biosynthesis.
- The repressor protein produced by the regulator gene binds to the operator region, thereby preventing transcription of the structural genes.
- In prokaryotic cells, the regulator gene often produces a repressor protein that regulates the expression of genes involved in metabolic pathways.