repressor

IPA: riprˈɛsɝ

Anything that represses.
(genetics) Any protein that binds to DNA and thus regulates the expression of genes by decreasing the rate of transcription.

Examples of "repressor" in Sentences

The repressor protein binds to the DNA, blocking the transcription of certain genes in the cell
The repressor molecule acts as a regulatory switch, turning off the expression of specific genetic information
Mutations in the repressor gene can lead to uncontrolled growth and division of cells
The repressor protein prevents the activation of genes involved in stress response pathways
Researchers are studying ways to artificially manipulate the repressor mechanism to treat certain genetic disorders