Transcription Coactivator

**Semantic type:** Amino Acid, Peptide, or Protein|Biologically Active Substance

**Definition:** A transcription cofactor that activates transcription from a RNA polymerase II promoter but does not bind DNA itself.

**Synonyms:** - Transcription Activator - Transcription Factor Coactivator - Transcriptional Activator - Transcriptional Activator/Coactivator - Transcriptional Coactivator