title: Positive selection for loss of RpoS function in Escherichia coli.
authors.affiliation: Department of Biology, McMaster University, Hamilton, Ont., Canada L8S 4K1.
authors.forename: Guozhu
authors.initials: G
authors.lastname: Chen
authors.forename: Cheryl L
authors.initials: CL
authors.lastname: Patten
authors.forename: Herb E
authors.initials: HE
authors.lastname: Schellhorn
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics / Q000502:physiology*; D001483:Base Sequence; D002374:Catalase / Q000378:metabolism; D017931:DNA Primers; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000235:genetics / Q000502:physiology*; D009154:Mutation; D016133:Polymerase Chain Reaction; D012808:Sigma Factor / Q000235:genetics / Q000502:physiology*
chemical_list: D001426:Bacterial Proteins; D017931:DNA Primers; D012808:Sigma Factor; C069567:sigma factor KatF protein, Bacteria; D002374:Catalase