Published Online: 23 SEP 2005
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Smale, S. T. 2005. Promoters. eLS.
- Published Online: 23 SEP 2005
A promoter is a segment of a gene of about 100–400 base pairs that comprises the transcription initiation site and a collection of short deoxyribonucleic acid (DNA) sequences that bind proteins involved in regulating transcription. The proteins that bind to the promoter mediate the recruitment of a ribonucleic acid (RNA) polymerase to the initiation site and play a major role in dictating when, and in which cells, the gene is expressed.
- RNA polymerase;
- TATA box;
- initiator element