title: Immotile phenotype of an Escherichia coli mutant lacking the histone-like protein HU.
abstract: The histone-like protein HU in Escherichia coli are encoded by the hupA and hupB genes. A hupA-hupB double deletion mutant has now been shown to express an immotile phenotype. The motility of hupA or hupB single mutants was similar to that of wild-type cells. SDS-polyacrylamide gel electrophoresis revealed that the amount of flagellin in the hupA-hupB double deletion mutant was markedly reduced compared with the wild-type strain suggesting that the immotile phenotype of the double deletion mutant is caused by a loss of flagella.
authors.affiliation: Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Nishida
authors.forename: T
authors.initials: T
authors.lastname: Mizushima
authors.forename: T
authors.initials: T
authors.lastname: Miki
authors.forename: K
authors.initials: K
authors.lastname: Sekimizu
mesh_terms: D001425:Bacterial Outer Membrane Proteins / Q000235:genetics / Q000502:physiology*; D001426:Bacterial Proteins / Q000235:genetics / Q000502:physiology*; D002352:Carrier Proteins / Q000235:genetics / Q000502:physiology*; D004268:DNA-Binding Proteins / Q000235:genetics / Q000502:physiology*; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000235:genetics* / Q000502:physiology; D029968:Escherichia coli Proteins; D005407:Flagella / Q000502:physiology; D005408:Flagellin / Q000235:genetics / Q000378:metabolism; D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D009068:Movement; D010641:Phenotype; D011401:Promoter Regions, Genetic; D011993:Recombinant Fusion Proteins / Q000378:metabolism; D014158:Transcription, Genetic; D014161:Transduction, Genetic; D001616:beta-Galactosidase / Q000378:metabolism
chemical_list: D001425:Bacterial Outer Membrane Proteins; D001426:Bacterial Proteins; D002352:Carrier Proteins; D004268:DNA-Binding Proteins; D029968:Escherichia coli Proteins; C099188:HupA protein, bacteria; D011993:Recombinant Fusion Proteins; C040330:histone-like protein HU, bacteria; C490937:hupA protein, E coli; D005408:Flagellin; D001616:beta-Galactosidase