title: Characterization of crystals of satellite panicum mosaic virus.
abstract: Satellite panicum mosaic virus (SPMV) has been purified from pearl millet and obtained in a variety of different crystal forms, at least two of which appear suitable for high resolution X-ray diffraction analysis. The first is of cubic space group P4(2)32 with a = b = c = 183.1 A and two virus particles in the unit cell. The second is of a primitive orthorhombic space group with a = 166.1 A, b = 266.7 A and c = 269.1 A, with four virus particles in the unit cell. While the cubic crystal has as its asymmetric unit one twelfth of the icosahedron, or five capsid protein subunits, the asymmetric unit of the orthorhombic crystals is an entire particle. The cubic crystals diffract to at least 2.8 A resolution. We have also succeeded in crystallizing, but not yet characterizing the master virus, PMV.
authors.affiliation: Department of Biochemistry, University of California, Riverside 92521.
authors.forename: J
authors.initials: J
authors.lastname: Day
authors.forename: N
authors.initials: N
authors.lastname: Ban
authors.forename: S
authors.initials: S
authors.lastname: Patel
authors.forename: S B
authors.initials: SB
authors.lastname: Larson
authors.forename: A
authors.initials: A
authors.lastname: McPherson
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D002523:Edible Grain / Q000382:microbiology; D015394:Molecular Structure; D009029:Mosaic Viruses / Q000737:chemistry* / Q000302:isolation & purification; D012526:Satellite Viruses / Q000737:chemistry* / Q000302:isolation & purification