Transcription factor
From Wikipedia, the free encyclopedia.

In molecular biology, a transcription factor is a protein that binds DNA at a specific promoter or enhancer region or site, where it regulates transcription. Transcription factors can be selectively activated or deactivated by other proteins, often as the final step in signal transduction.

See also: DNA binding protein

The original article can be found at: http://en.wikipedia.org/wiki/Transcription_factor.
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