title: The mechanism by which heparin stimulates transcription in isolated rat liver nuclei. Polyribonucleotide elongation rates and the number of transcribing RNA polymerase molecules present.
mesh_terms: D000818:Animals; D002412:Cations / Q000494:pharmacology; D002467:Cell Nucleus / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D006493:Heparin / Q000494:pharmacology*; D008099:Liver / Q000378:metabolism; D008970:Molecular Weight; D012313:RNA / Q000378:metabolism; D012318:RNA Polymerase I / Q000378:metabolism; D012319:RNA Polymerase II / Q000378:metabolism; D051381:Rats; D014158:Transcription, Genetic / Q000187:drug effects*
chemical_list: D002412:Cations; D012313:RNA; D006493:Heparin; D012319:RNA Polymerase II; D012321:DNA-Directed RNA Polymerases; D012318:RNA Polymerase I