title: Free and engaged forms of RNA polymerase in isolated macronuclei from Tetrahymena pyriformis [proceedings].
mesh_terms: D000546:Amanitins / Q000494:pharmacology; D000818:Animals; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D003609:Dactinomycin / Q000494:pharmacology; D046911:Macromolecular Substances; D011067:Poly dA-dT; D012318:RNA Polymerase I / Q000378:metabolism; D012319:RNA Polymerase II / Q000378:metabolism; D013769:Tetrahymena pyriformis / Q000201:enzymology*; D014158:Transcription, Genetic / Q000187:drug effects
chemical_list: D000546:Amanitins; D046911:Macromolecular Substances; D003609:Dactinomycin; D011067:Poly dA-dT; D012319:RNA Polymerase II; D012321:DNA-Directed RNA Polymerases; D012318:RNA Polymerase I