Characterization of single crystals of the large ribosomal particles from Bacillus stearothermophilus. 1986

A Yonath, and M A Saper, and I Makowski, and J Müssig, and J Piefke, and H D Bartunik, and K S Bartels, and H G Wittmann

Single, three-dimensional crystals of the 50 S ribosomal subunit from Bacillus stearothermophilus (strain NCA) have been characterized using a synchrotron X-ray source. The crystals are orthorhombic with unit cell dimensions: a = 350 A, b = 670 A, c = 905 A, and contain at least one 2-fold screw axis. With cooling to -2 degrees C, the large crystals (1.0 mm X 0.2 mm X 0.1 mm) diffract to 15 to 18 A resolution and are stable in the synchrotron beam for several hours. Despite the large cell dimensions, the reflections are readily resolved when the X-ray diffraction patterns are densitometered with a 25 microns faster.

UI MeSH Term Description Entries
D003460 Crystallization The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Crystalline Polymorphs,Polymorphism, Crystallization,Crystal Growth,Polymorphic Crystals,Crystal, Polymorphic,Crystalline Polymorph,Crystallization Polymorphism,Crystallization Polymorphisms,Crystals, Polymorphic,Growth, Crystal,Polymorph, Crystalline,Polymorphic Crystal,Polymorphisms, Crystallization,Polymorphs, Crystalline
D003461 Crystallography The branch of science that deals with the geometric description of crystals and their internal arrangement. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Crystallographies
D001411 Geobacillus stearothermophilus A species of GRAM-POSITIVE ENDOSPORE-FORMING BACTERIA in the family BACILLACEAE, found in soil, hot springs, Arctic waters, ocean sediments, and spoiled food products. Bacillus stearothermophilus,Bacillus thermoliquefaciens
D012270 Ribosomes Multicomponent ribonucleoprotein structures found in the CYTOPLASM of all cells, and in MITOCHONDRIA, and PLASTIDS. They function in PROTEIN BIOSYNTHESIS via GENETIC TRANSLATION. Ribosome
D014961 X-Ray Diffraction The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Xray Diffraction,Diffraction, X-Ray,Diffraction, Xray,Diffractions, X-Ray,Diffractions, Xray,X Ray Diffraction,X-Ray Diffractions,Xray Diffractions

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