title: Escherichia coli positive regulator OmpR has a large loop structure at the putative RNA polymerase interaction site.
abstract: The C-terminal DNA-binding domain of OmpR, a positive regulator involved in osmoregulation expression of the ompF and ompC genes in Escherichia coli, has a helix-turn-helix variant motif. The 'turn' region, consisting of 11 residues, forms an RNA polymerase contact site.
authors.forename: H
authors.initials: H
authors.lastname: Kondo
authors.forename: A
authors.initials: A
authors.lastname: Nakagawa
authors.forename: J
authors.initials: J
authors.lastname: Nishihira
authors.forename: Y
authors.initials: Y
authors.lastname: Nishimura
authors.forename: T
authors.initials: T
authors.lastname: Mizuno
authors.forename: I
authors.initials: I
authors.lastname: Tanaka
mesh_terms: D000595:Amino Acid Sequence; D001425:Bacterial Outer Membrane Proteins / Q000737:chemistry*; D001665:Binding Sites; D004268:DNA-Binding Proteins / Q000737:chemistry*; D012321:DNA-Directed RNA Polymerases / Q000737:chemistry*; D004926:Escherichia coli / Q000737:chemistry*; D019077:Helix-Turn-Helix Motifs; D008969:Molecular Sequence Data; D017433:Protein Structure, Secondary
chemical_list: D001425:Bacterial Outer Membrane Proteins; D004268:DNA-Binding Proteins; D012321:DNA-Directed RNA Polymerases