title: A rapid and facile procedure for the preparation of RNA polymerase I from Acanthamoeba castellanii. Purification and subunit structure.
mesh_terms: D000656:Amoeba / Q000201:enzymology*; D000818:Animals; D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification*; D046911:Macromolecular Substances; D008722:Methods; D008970:Molecular Weight; D012318:RNA Polymerase I / Q000302:isolation & purification*
chemical_list: D046911:Macromolecular Substances; D012321:DNA-Directed RNA Polymerases; D012318:RNA Polymerase I