title: Control of gluconate utilization in Sinorhizobium meliloti.
abstract: The Sinorhizobium meliloti megaplasmid pSymA has previously been implicated in gluconate utilization. We report a locus on pSymA encoding a putative tripartite ATP-independent periplasmic (TRAP) transporter that is required for gluconate utilization. The expression of this locus is negatively regulated by a GntR family regulator encoded adjacent to the transporter operon.
authors.affiliation: Department of Microbiology and Molecular Biology, Brigham Young University, Provo, UT 84602, USA.
authors.forename: Tyler T
authors.initials: TT
authors.lastname: Steele
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Fowler
authors.forename: Joel S
authors.initials: JS
authors.lastname: Griffitts
mesh_terms: D010450:Endopeptidases / Q000235:genetics / Q000378:metabolism; D015964:Gene Expression Regulation, Bacterial / Q000502:physiology; D005942:Gluconates / Q000378:metabolism*; D009154:Mutation; D010957:Plasmids / Q000737:chemistry / Q000235:genetics*; D016962:Sinorhizobium meliloti / Q000235:genetics / Q000378:metabolism*
chemical_list: D005942:Gluconates; D010450:Endopeptidases; C065481:Bacillus polymyxa proteinase; C030691:gluconic acid