transcription factor

noun
UK /trænˈskrɪpʃən ˈfæktə/
US /trænˈskrɪpʃən ˈfæktər/

A tiny helper in a cell that tells genes when to turn on or off.

The transcription factor switched on the gene that helps the cell fight infection.


OTHER MEANINGS

2. A protein that controls how much RNA is made from a gene.

Scientists studied the transcription factor to understand why the gene was overactive.

3. A molecule that binds to DNA and affects gene expression.

This transcription factor binds near the promoter region of the gene.

4. A regulatory protein involved in cell development and specialization.

Different transcription factors guide stem cells to become muscle or nerve cells.