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Crystallization and preliminary X-ray diffraction studies of homoserine dehydrogenase from Saccharomyces cerevisiae. 1998

B DeLaBarre, and S L Jacques, and C E Pratt, and D A Ruth, and G D Wright, and A M Berghuis
Department of Biochemistry, McMaster University, 1200 Main St West, Hamilton, Ontario L8N 3Z5, Canada.

Recombinant homoserine dehydrogenase from Saccharomyces cerevisiae has been crystallized in three different forms. Crystals of the apo-enzyme belong to the tetragonal space group P4 and have unit-cell-dimensions a = b = 130 and c = 240 A. The resolution limit for these crystals is 3.9 A. Crystals of homoserine dehydrogenase grown in the presence of the co-factor NAD+ have the tetragonal space group P41212 or its enantiomorph P43212. The unit-cell dimensions for these crystals are a = b = 80.4 and c = 250.2 A, and the observed resolution limit is 2.2 A. Protein crystals grown in the presence of the product L-homoserine and the inert NAD+ analogue 3-aminopyridine adenine dinucleotide belong to the monoclinic space group P21 with unit-cell parameters a = 58.8, b = 104.2, c = 120.7 A, beta = 91.9 degrees. This last crystal form has a diffraction limit of 2.7 A resolution.

UI MeSH Term Description Entries
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
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
D006715 Homoserine Dehydrogenase An enzyme that catalyzes the reduction of aspartic beta-semialdehyde to homoserine, which is the branch point in biosynthesis of methionine, lysine, threonine and leucine from aspartic acid. EC 1.1.1.3. Dehydrogenase, Homoserine
D012441 Saccharomyces cerevisiae A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement. Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
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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