title: Three-dimensional structure of the surface layer of Wolinella recta.
abstract: The three-dimensional structure of the crystalline surface layer (S-layer) of Wolinella recta ATCC 33238T, a gram-negative, anaerobic periodontopathogen, was determined to 3.8 nm resolution by electron microscopy and digital image processing. The S-layer protein is closely associated with the outer bacterial membrane, and shows p6 symmetry with lattice spacing and thickness of 21 nm and 15 nm, respectively. The funnel-shaped subunits consist of 6 heavy domains located round a common base at the sixfold axis, and communicate with the adjacent subunits through a lighter domain at the threefold axis (M6C3 arrangement).
authors.affiliation: EMU for Biological Sciences, University of Oslo, Norway.
authors.forename: T
authors.initials: T
authors.lastname: Dokland
authors.forename: I
authors.initials: I
authors.lastname: Olsen
authors.forename: G
authors.initials: G
authors.lastname: Farrants
authors.forename: B V
authors.initials: BV
authors.lastname: Johansen
mesh_terms: D001425:Bacterial Outer Membrane Proteins / Q000737:chemistry; D002462:Cell Membrane / Q000648:ultrastructure; D006089:Gram-Negative Anaerobic Bacteria / Q000648:ultrastructure*; D007091:Image Processing, Computer-Assisted; D008854:Microscopy, Electron; D010510:Periodontal Diseases / Q000382:microbiology; D014774:Virulence
chemical_list: D001425:Bacterial Outer Membrane Proteins