Crystallization behaviour of glyceraldehyde dehydrogenase from Thermoplasma acidophilum. 2015

Iuliia Iermak, and Oksana Degtjarik, and Fabian Steffler, and Volker Sieber, and Ivana Kuta Smatanova
Faculty of Science, University of South Bohemia in Ceske Budejovice, Branisovska 31, 37005 Ceske Budejovice, Czech Republic.

The glyceraldehyde dehydrogenase from Thermoplasma acidophilum (TaAlDH) is a microbial enzyme that catalyzes the oxidation of D-glyceraldehyde to D-glycerate in the artificial enzyme cascade designed for the conversion of glucose to the organic solvents isobutanol and ethanol. Various mutants of TaAlDH were constructed by a random approach followed by site-directed and saturation mutagenesis in order to improve the properties of the enzyme that are essential for its functioning within the cascade. Two enzyme variants, wild-type TaAlDH (TaAlDHwt) and an F34M+S405N variant (TaAlDH F34M+S405N), were successfully crystallized. Crystals of TaAlDHwt belonged to the monoclinic space group P1211 with eight molecules per asymmetric unit and diffracted to a resolution of 1.95 Å. TaAlDH F34M+S405N crystallized in two different space groups: triclinic P1 with 16 molecules per asymmetric unit and monoclinic C121 with four molecules per asymmetric unit. These crystals diffracted to resolutions of 2.14 and 2.10 Å for the P1 and C121 crystals, respectively.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
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
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D013401 Sugar Alcohol Dehydrogenases Reversibly catalyzes the oxidation of a hydroxyl group of sugar alcohols to form a keto sugar, aldehyde or lactone. Any acceptor except molecular oxygen is permitted. Includes EC 1.1.1.; EC 1.1.2. and EC 1.1.99. Sugar Alcohol Oxidoreductases,Alcohol Dehydrogenases, Sugar,Alcohol Oxidoreductases, Sugar,Dehydrogenases, Sugar Alcohol,Oxidoreductases, Sugar Alcohol
D013822 Thermoplasma A genus of facultatively anaerobic heterotrophic archaea, in the order THERMOPLASMALES, isolated from self-heating coal refuse piles and acid hot springs. They are thermophilic and can grow both with and without sulfur.
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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