title: Isolation of multiple forms of DNA-dependent RNA polymerase from calf-livernuclei.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002417:Cattle; D002458:Cell Fractionation; D002467:Cell Nucleus / Q000201:enzymology; D002474:Cell-Free System; D002794:Choline; D002852:Chromatography, Ion Exchange; D006863:Hydrogen-Ion Concentration; D007527:Isoenzymes; D008099:Liver / Q000166:cytology / Q000201:enzymology*; D009994:Osmolar Concentration; D012316:RNA Nucleotidyltransferases / Q000037:antagonists & inhibitors / Q000302:isolation & purification*; D013329:Structure-Activity Relationship; D013698:Templates, Genetic; D014461:Ultracentrifugation
chemical_list: D007527:Isoenzymes; D012316:RNA Nucleotidyltransferases; D002794:Choline