三种不同的RNA聚合酶 N ame Location G enes Sensitive to amanitin transcribed RNA Pol nucleoli Most rrna insensitive RNA Pol I nucleoplasm mRNA Very sensitive some snrna RNA Pol Ill nucleoplasm tRNA Moderately sensitive 5S rRNA U6 SnRNA small rna一、三种不同的RNA聚合酶 Name Location Genes transcribed Sensitive to amanitin RNA Pol I nucleoli Most rRNA Insensitive RNA Pol II nucleoplasm mRNA some snRNA Very sensitive RNA Pol III nucleoplasm tRNA , 5S rRNA U6 snRNA, small RNA Moderately sensitive