title: A procedure for the rapid purification of Escherichia coli deoxyribonucleic acid-dependent ribonucleic acid polymerase.
abstract: A rapid procedure involving DNA-cellulose chromatography followed either by sedimentation in a high-salt glycerol gradient or by gel filtration is described for the complete purification of Escherichia coli DNA-dependent RNA polymerase.
mesh_terms: D002499:Centrifugation, Density Gradient; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D004247:DNA; D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology*; D005069:Evaluation Studies as Topic; D005990:Glycerol; D008722:Methods; D013056:Spectrophotometry, Ultraviolet
chemical_list: D004247:DNA; D012321:DNA-Directed RNA Polymerases; D005990:Glycerol