title: The three-dimensional structure of the colicin E3 immunity protein by distance geometry calculation.
abstract: The three-dimensional solution structure of the colicin E3 immunity protein (84 residues) was determined by distance geometry calculations. The hydrophilic side of a four-stranded antiparallel beta-sheet constitutes a part of the surface of the protein, and two loops lie on the hydrophobic side of the sheet. All the three specificity-determining residues, which are included in the center of the beta-sheet, display their side groups on the protein surface.
authors.affiliation: Department of Biotechnology, University of Tokyo, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Yajima
authors.forename: Y
authors.initials: Y
authors.lastname: Muto
authors.forename: S
authors.initials: S
authors.lastname: Morikawa
authors.forename: H
authors.initials: H
authors.lastname: Nakamura
authors.forename: S
authors.initials: S
authors.lastname: Yokoyama
authors.forename: H
authors.initials: H
authors.lastname: Masaki
authors.forename: T
authors.initials: T
authors.lastname: Uozumi
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry*; D001665:Binding Sites; D003087:Colicins / Q000037:antagonists & inhibitors*; D004926:Escherichia coli; D029968:Escherichia coli Proteins; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008958:Models, Molecular; D017433:Protein Structure, Secondary
chemical_list: D001426:Bacterial Proteins; D003087:Colicins; D029968:Escherichia coli Proteins; C488855:ceiC protein, E coli; C007104:colicin immunity proteins