2ait

DETERMINATION OF THE COMPLETE THREE-DIMENSIONAL STRUCTURE OF THE ALPHA-AMYLASE INHIBITOR TENDAMISTAT IN AQUEOUS SOLUTION BY NUCLEAR MAGNETIC RESONANCE AND DISTANCE GEOMETRY

spinqualitylabelsall models 2ait Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2ait is a 1 chain structure with sequence from Streptomyces tendae. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Solution NMR, 9 models Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function IAA_STRTE Inhibits mammalian alpha-amylases specifically but has no action on plant and microbial alpha-amylases. Forms a tight stoichiometric 1:1 complex with alpha-amylase. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The complete three-dimensional structure of the alpha-amylase inhibitor Tendamistat in aqueous solution was determined by 1H nuclear magnetic resonance and distance geometry calculations using the program DISMAN. Compared to an earlier, preliminary determination of the polypeptide backbone conformation, stereo-specific assignments were obtained for 41 of the 89 prochiral groups in the protein, and a much more extensive set of experimental constraints was collected, including 842 distance constraints from nuclear Overhauser effects and over 100 supplementary constraints from spin-spin coupling constants and the identification of intramolecular hydrogen bonds. The complete protein molecule, including the amino acid side-chains is characterized by a group of nine structures corresponding to the results of the nine DISMAN calculations with minimal residual error functions. The average of the pairwise minimal root-mean-square distances among these nine structures is 0.85 A for the polypeptide backbone, and 1.52 A for all the heavy atoms. The procedures used for the structure determination are described and a detailed analysis is presented of correlations between the experimental input data and the precision of the structure determination. Determination of the complete three-dimensional structure of the alpha-amylase inhibitor tendamistat in aqueous solution by nuclear magnetic resonance and distance geometry.,Kline AD, Braun W, Wuthrich K J Mol Biol. 1988 Dec 5;204(3):675-724. PMID:3265733 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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