title: Molecular size and symmetry of the bacterioferritin of Escherichia coli. X-ray crystallographic characterization of four crystal forms.
abstract: X-ray crystallographic data from four crystal forms of Escherichia coli bacterioferritin show that the molecule has a diameter in the range 119 to 128 A. Molecules are composed of 24 subunits arranged in 432 symmetry. In both size and symmetry the molecule resembles ferritin from eukaryotes. The four crystal forms are monoclinic, space group P2(1) with unit cell dimensions a = 118.7 A, b = 211.6 A, c = 123.3 A and beta = 119.1 degrees; orthorhombic, C222(1), a = 128.7 A, b = 197.1 A, c = 202.8 A; tetragonal, P4(2)2(1)2, a = b = 210.6 A, c = 145.0 A and cubic, I432, a = 146.9 A.
authors.affiliation: Department of Biochemistry, University of Sheffield, England.
authors.forename: J M
authors.initials: JM
authors.lastname: Smith
authors.forename: G C
authors.initials: GC
authors.lastname: Ford
authors.forename: P M
authors.initials: PM
authors.lastname: Harrison
authors.forename: J
authors.initials: J
authors.lastname: Yariv
authors.forename: A J
authors.initials: AJ
authors.lastname: Kalb
mesh_terms: D001426:Bacterial Proteins; D003573:Cytochrome b Group; D004926:Escherichia coli; D005293:Ferritins; D014961:X-Ray Diffraction
chemical_list: D001426:Bacterial Proteins; D003573:Cytochrome b Group; D005293:Ferritins; C018032:bacterioferritin