This comparison uses the following model of procaryotic transcription. 下面以原核细胞转录作用为模式进行比较。
In eukaryotes it may bind to proteins in a transcription complex to inhibit its action, or it may bind to a TRANSCRIPTION factor. 在真核生物中,它可能与蛋白质结合形成一种转录复合体,抑制转录作用,或与转录因子结合在一起。