WANI Dictionary

Promoter

In biology, a promoter is a region of DNA where RNA polymerase and transcription factors bind to control transcription.

Definitions in the literature

• In DNA, a nucleotide sequence to which RNA polymerase binds; site where transcription begins [1].
• The region of a DNA molecule that signals tha start of transcription [2].
• A promoter is a cis-acting DNA sequence recognized by RNA polymerase (RNAP) for subsequent transcription [3].