title: CHR, a novel family of prokaryotic proton motive force-driven transporters probably containing chromate/sulfate antiporters.
abstract: We describe a small family of proteins, CHR, which contains members that function in chromate and/or sulfate transport. CHR proteins occur in bacteria and archaea. They consist of about 400 amino acyl residues, appear to have 10 transmembrane alpha-helical segments in an unusual 4+6 arrangement, and arose by an intragenic duplication event.
authors.affiliation: Institut für Mikrobiologie, D-06099 Halle, Germany. D.Nies@mikrobiologie.uni-halle.de
authors.forename: D H
authors.initials: DH
authors.lastname: Nies
authors.forename: S
authors.initials: S
authors.lastname: Koch
authors.forename: S
authors.initials: S
authors.lastname: Wachi
authors.forename: N
authors.initials: N
authors.lastname: Peitzsch
authors.forename: M H
authors.initials: MH
authors.lastname: Saier
mesh_terms: D000595:Amino Acid Sequence; D017920:Antiporters / Q000737:chemistry / Q000145:classification / Q000235:genetics*; D001426:Bacterial Proteins / Q000737:chemistry / Q000145:classification / Q000235:genetics*; D002840:Chromates / Q000378:metabolism*; D008969:Molecular Sequence Data; D009876:Operon; D010802:Phylogeny; D011387:Prokaryotic Cells; D011522:Protons; D017386:Sequence Homology, Amino Acid; D013431:Sulfates / Q000378:metabolism*
chemical_list: D017920:Antiporters; D001426:Bacterial Proteins; D002840:Chromates; D011522:Protons; D013431:Sulfates