title: Selective inhibition by zinc of RNA synthesis initiation in the RNA polymerase I reaction.
mesh_terms: D000818:Animals; D002286:Carcinoma, Ehrlich Tumor / Q000201:enzymology; D012321:DNA-Directed RNA Polymerases / Q000037:antagonists & inhibitors*; D046911:Macromolecular Substances; D008274:Magnesium / Q000494:pharmacology; D008345:Manganese / Q000494:pharmacology; D012313:RNA / Q000096:biosynthesis*; D012318:RNA Polymerase I / Q000037:antagonists & inhibitors*; D015032:Zinc / Q000494:pharmacology*
chemical_list: D046911:Macromolecular Substances; D008345:Manganese; D012313:RNA; D012321:DNA-Directed RNA Polymerases; D012318:RNA Polymerase I; D008274:Magnesium; D015032:Zinc