Coactivators are multi-subunit complexes that facilitate transcription initiation directly, by interacting with RNA polymerase and general transcription factors, or indirectly, by influencing chromatin.

• 共激活因子是有多种亚单位的复合物,它们可以通过与RNA聚合酶及普通转录因子相互作用而直接易化转录过程的启动,或以间接的方式来影响染色质。