title: Purification of Bacillus subtilis RNA polymerase and associated factors.
authors.affiliation: Department of Microbiology, Cornell University, Ithaca, New York 14853, USA.
authors.forename: John D
authors.initials: JD
authors.lastname: Helmann
mesh_terms: D000645:Ammonium Sulfate / Q000494:pharmacology; D001412:Bacillus subtilis / Q000201:enzymology*; D001671:Biochemistry / Q000379:methods*; D002482:Cellulose / Q000737:chemistry; D012321:DNA-Directed RNA Polymerases / Q000302:isolation & purification*; D004926:Escherichia coli / Q000201:enzymology; D011487:Protein Conformation; D017434:Protein Structure, Tertiary; D012808:Sigma Factor / Q000737:chemistry
chemical_list: D012808:Sigma Factor; D002482:Cellulose; D012321:DNA-Directed RNA Polymerases; D000645:Ammonium Sulfate