title: A simple procedure for resolution of Escherichia coli RNA polymerase holoenzyme from core polymerase.
mesh_terms: D002852:Chromatography, Ion Exchange; D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification* / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology*
chemical_list: D012321:DNA-Directed RNA Polymerases