3cys

DETERMINATION OF THE NMR SOLUTION STRUCTURE OF THE CYCLOPHILIN A-CYCLOSPORIN A COMPLEXDETERMINATION OF THE NMR SOLUTION STRUCTURE OF THE CYCLOPHILIN A-CYCLOSPORIN A COMPLEX

Structural highlights 3cys is a 2 chain structure with sequence from Beauveria nivea and Human. This structure supersedes the now removed PDB entry 2cys. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. NonStd Res: , , , , , Related: 1bck, 1c5f, 1csa, 1cwa, 1cwb, 1cwc, 1cwf, 1cwh, 1cwi, 1cwj, 1cwk, 1cwl, 1cwm, 1cwo, 1cya, 1cyb, 1cyn, 1ikf, 1m63, 1mf8, 1mik, 1qng, 1qnh, 1xq7, 2esl, 2oju, 2poy, 2rma, 2rmb, 2rmc, 2wfj, 2x2c, 2x7k, 2z6w, 3bo7, 3eov Activity: Peptidylprolyl isomerase, with EC number 5.2.1.8 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT 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 three-dimensional NMR solution structure of the cyclophilin A (Cyp)-cyclosporin A (CsA) complex was determined, and here we provide a detailed description of the analysis of the NMR data and the structure calculation. Using 15N- and 13C-resolved three- and four-dimensional [1H,1H]-nuclear Overhauser enhancement (NOE) spectroscopy with uniformly isotope-labeled Cyp in the complex, a final data set of 1810 intra-Cyp, 107 intra-CsA and 63 intermolecular NOE upper distance constraints was collected as input for the structure calculation with the program DIANA. A group of DIANA conformers, selected by a previously described analysis of the dependence of the maximal root-mean-square deviation (rmsd) among the individual conformers on the residual target function value, was subjected to energy refinement with the program FANTOM. The 22 best energy-refined conformers were then used to represent the solution structure. The average rmsd relative to the mean structure of these 22 conformers is 1.1 A for the backbone atoms of all residues of the complex. The molecular architecture of Cyp in the Cyp-CsA complex includes an eight-stranded antiparallel beta-barrel, which is closed on each side by an amphipathic helix. CsA is bound in a cavity formed by part of the barrel surface and four loops with nonregular secondary structure. Comparison of this structure with structures of Cyp-CsA and other Cyp-peptide complexes determined by different approaches shows extensive similarities. Determination of the NMR solution structure of the cyclophilin A-cyclosporin A complex.,Spitzfaden C, Braun W, Wider G, Widmer H, Wuthrich K J Biomol NMR. 1994 Jul;4(4):463-82. PMID:8075536 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Cyclophilin 3D structures

spinqualitylabelsall models 3cys, 22 NMR models Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image