B M Ahmer
Affiliation: Oregon Health and Science University
- Salmonella typhimurium encodes an SdiA homolog, a putative quorum sensor of the LuxR family, that regulates genes on the virulence plasmidB M Ahmer
Department of Molecular Microbiology and Immunology, Oregon Health Sciences University, Portland 97201 3098, USA
J Bacteriol 180:1185-93. 1998..The three ORFs have now been named srgA, srgB, and srgC (for sdiA-regulated gene), respectively. The DNA sequence adjacent to the remaining three fusions shared no similarity with previously described genes...
- The virulence plasmid of Salmonella typhimurium is self-transmissibleB M Ahmer
Department of Molecular Microbiology and Immunology, Oregon Health Sciences University, Portland, Oregon 97201 3098, USA
J Bacteriol 181:1364-8. 1999..Homologs of the F plasmid conjugation genes are physically located on the virulence plasmid and are required for the conjugative phenotype...
- Salmonella SirA is a global regulator of genes mediating enteropathogenesisB M Ahmer
Department of Molecular Microbiology, Oregon Health Sciences University, Portland 97201 3098, USA
Mol Microbiol 31:971-82. 1999..typhimurium. Because S. typhimurium causes gastroenteritis in both cattle and humans, we believe that this information may be directly applicable to the human disease...
- Characterization of the exbBD operon of Escherichia coli and the role of ExbB and ExbD in TonB function and stabilityB M Ahmer
Department of Genetics and Cell Biology, Washington State University, Pullman 99164 4233, USA
J Bacteriol 177:4742-7. 1995..Residual ExbD-PhoA expression in an exbB::Tn10 strain was not iron regulated and may have originated from within the Tn10 element in exbB...
- Energy transduction between membranes. TonB, a cytoplasmic membrane protein, can be chemically cross-linked in vivo to the outer membrane receptor FepAJ T Skare
Department of Microbiology, Washington State University, Pullman 99164
J Biol Chem 268:16302-8. 1993..A tolQ nonsense mutation had no effect on the cross-linking profile observed, confirming that its participation in TonB-dependent phenomena is minor and most likely the result of evolutionary cross-talk...
- SirA orthologs affect both motility and virulenceR I Goodier
Department of Microbiology, The Ohio State University, Columbus, Ohio 43210, USA
J Bacteriol 183:2249-58. 2001..The implications for our understanding of virulence gene regulation in the gamma Proteobacteria are discussed...
- SdiA of Salmonella enterica is a LuxR homolog that detects mixed microbial communitiesB Michael
Department of Microbiology, The Ohio State University, Columbus, Ohio 43210 1292, USA
J Bacteriol 183:5733-42. 2001..SdiA appears to be the first AHL receptor discovered that detects signals emanating exclusively from other species...