Exploring the active site of plant glutaredoxin by site-directed mutagenesis
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چکیده
منابع مشابه
A putative glutathione-binding site in T4 glutaredoxin investigated by site-directed mutagenesis.
A glutathione monomer has been docked into the active site cleft of T4 glutaredoxin (previously called T4 thioredoxin) using molecular graphics. The central part of the cleft is formed by the side chain of Tyr-16 on one side and the residues Thr-64, Met-65, and Pro-66 on the other. The entire glutathione molecule fits well into the cleft. A cis-peptide bond between the residues Met-65 and Pro-6...
متن کاملThe active site topology of Aspergillus niger endopolygalacturonase II as studied by site-directed mutagenesis.
Strictly conserved charged residues among polygalacturonases (Asp-180, Asp-201, Asp-202, His-223, Arg-256, and Lys-258) were subjected to site-directed mutagenesis in Aspergillus niger endopolygalacturonase II. Specific activity, product progression, and kinetic parameters (K(m) and V(max)) were determined on polygalacturonic acid for the purified mutated enzymes, and bond cleavage frequencies ...
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Structural elements of the rat 1.t-opioid receptor important in ligand receptor binding and selectivity were examined using a site-directed mutagenesis approach. Five single amino acid mutations were made, three that altered conserved residues in the ~ 8, and K receptors (Asn 15°t Ala, His297 to Ala, and Tyr326 to Phe) and wo de igned to test for ~i/8 selectivity (lie198 to Val and Va1202 to li...
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Menaquinol-fumarate oxidoreductase of Escherichia coli is a four-subunit membrane-bound complex that catalyzes the final step in anaerobic respiration when fumarate is the terminal electron acceptor. The enzyme is structurally and catalytically similar to succinate dehydrogenase (succinate-ubiquinone oxidoreductase) from both procaryotes and eucaryotes. Both enzymes have been proposed to contai...
متن کاملSerratia marcescens B4A chitinase thermostability enhancement by S390I QuikChange site directed mutagenesis
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 2001
ISSN: 0014-5793
DOI: 10.1016/s0014-5793(01)03302-6