title: Preliminary characterization by X-ray diffraction of crystals of photochemical reaction centres from wild-type Rhodopseudomonas spheroides.
abstract: Reaction centres from wild-type Rhodopseudomonas spheroides (strain Y) in a solution of octylglucoside have been crystallized with polyethylene glycol as precipitant, either by vapour diffusion or dialysis. Orthorhombic crystals (space group P2(1)2(1)2(1)) diffract to 3.5 A resolution. The unit cell parameters are a = 142.5 A, b = 141.5 A, c = 80 A; they are compatible with the presence of one reaction centre per asymmetric unit.
mesh_terms: D003460:Crystallization; D010788:Photosynthesis; D012242:Rhodobacter sphaeroides / Q000648:ultrastructure*; D014961:X-Ray Diffraction