title: Crystallization of the B800-820 light-harvesting complex from Rhodopseudomonas acidophila strain 7750.
abstract: The B800-820 light-harvesting complex, an integral membrane protein, from Rhodopseudomonas acidophila strain 7750 has been crystallized. The tabular plates have a hexagonal unit cell of a = b = 121.8 A and c = 283.1 A and belong to the space group R32. X-ray diffraction data have been collected to 6 A resolution, using an area detector on a rotating anode source. The B800-820 light-harvesting complex is comprised of four low molecular weight apoproteins (B800-820 alpha 1, B800-820 alpha 2, B800-820 beta 1 and B800-820 beta 2). Polyacrylamide gel electrophoresis shows that the complex exists as an oligomeric assembly, with an apparent molecular weight of 92,000.
authors.affiliation: Department of Chemistry, University of Glasgow, Scotland.
authors.forename: N
authors.initials: N
authors.lastname: Guthrie
authors.forename: G
authors.initials: G
authors.lastname: MacDermott
authors.forename: R J
authors.initials: RJ
authors.lastname: Cogdell
authors.forename: A A
authors.initials: AA
authors.lastname: Freer
authors.forename: N W
authors.initials: NW
authors.lastname: Isaacs
authors.forename: A M
authors.initials: AM
authors.lastname: Hawthornthwaite
authors.forename: E
authors.initials: E
authors.lastname: Halloren
authors.forename: J G
authors.initials: JG
authors.lastname: Lindsay
mesh_terms: D003460:Crystallization; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry*; D012241:Rhodopseudomonas / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D045322:Photosynthetic Reaction Center Complex Proteins