title: A mutation in P23, the first gene in the RNA polymerase sigma A (sigma 43) operon, affects sporulation in Bacillus subtilis.
abstract: Mutations within P23, the first gene of the Bacillus subtilis sigma A operon, were not detrimental to vegetative growth or sporulation. One deletion of P23 resulted in a strain that sporulated earlier than the wild type. This aberrant phenotype may be due to the simultaneous deletion of a sigma H promoter from the sigma A operon.
authors.affiliation: Department of Biochemistry and Biophysics, University of California, Davis 95616.
authors.forename: A R
authors.initials: AR
authors.lastname: Zuberi
authors.forename: R H
authors.initials: RH
authors.lastname: Doi
mesh_terms: D001412:Bacillus subtilis / Q000201:enzymology / Q000235:genetics* / Q000502:physiology; D015500:Chloramphenicol O-Acetyltransferase / Q000235:genetics / Q000378:metabolism; D002876:Chromosomes, Bacterial; D004269:DNA, Bacterial / Q000235:genetics; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D004352:Drug Resistance, Microbial; D005798:Genes, Bacterial; D007700:Kinetics; D009113:Muramidase / Q000494:pharmacology; D009154:Mutation; D009876:Operon; D010641:Phenotype; D010957:Plasmids; D011994:Recombinant Proteins / Q000378:metabolism; D012808:Sigma Factor / Q000235:genetics*; D013171:Spores, Bacterial / Q000502:physiology; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004269:DNA, Bacterial; D011994:Recombinant Proteins; D012808:Sigma Factor; D014157:Transcription Factors; D015500:Chloramphenicol O-Acetyltransferase; C063505:RNA polymerase sigma A; D012321:DNA-Directed RNA Polymerases; D009113:Muramidase