specific region just upstream from a gene that acts as a binding site for
transcription factors and RNA polymerase during the initiation of transcription
Definition from: GeneReviews
from the University of Washington and the National Center for Biotechnology Information
- A promoter is a sequence of DNA needed to turn a gene on or off. The process of transcription is initiated at the promoter. Usually found near the beginning of a gene, the promoter has a binding site for the enzyme used to make a messenger RNA (mRNA) molecule.
Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
- A DNA site to which RNA polymerase will bind and initiate transcription.
Definition from: Human Genome Project Information
at the U.S. Department of Energy
See also Understanding Medical Terminology.