title: Subunit composition of Bacillus subtilis RNA polymerase during transcription.
mesh_terms: D001412:Bacillus subtilis / Q000201:enzymology*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D046911:Macromolecular Substances; D008970:Molecular Weight; D014158:Transcription, Genetic
chemical_list: D046911:Macromolecular Substances; D012321:DNA-Directed RNA Polymerases