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Transthyretin binding heterogeneity and anti-amyloidogenic activity of natural polyphenols and their metabolites: daidzein-7-O- glucuronide
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1F41 PDB ENTRY 1F41
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 CRYSTALS OF WT HUMAN TTR- LIGAND COMPLEXES WERE OBTAINED AT ROOM TEMPERATURE IN ABOUT ONE WEEK BY CO-CRYSTALLIZATION, USING THE HANGING-DROP VAPOR DIFFUSION METHOD. THE PROTEIN (5 MG/ML), IN 20 MM SODIUM PHOSPHATE, PH 7, WAS INCUBATED WITH A FOUR-FOLD MOLAR EXCESS OF LIGANDS SOLUBILIZED IN DMSO. DROPS WERE FORMED BY MIXING EQUAL VOLUMES OF THE SOLUTION CONTAINING LIGAND-TTR COMPLEXES AND OF THE RESERVOIR/PRECIPITANT SOLUTION (2.2 M AMMONIUM SULPHATE, 0.1 M KCL, 0.03 M SODIUM PHOSPHATE, PH 7.0).
Crystal Properties Matthews coefficient Solvent content 2.3 46.7
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 43.062 α = 90 b = 84.879 β = 90 c = 63.549 γ = 90
Symmetry Space Group P 21 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS PILATUS 6M KB MIRROR 2013-08-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1) PETRA III, EMBL c/o DESY P13 (MX1)
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.5 84.88 99.7 0.05 17.8 6.5 37976 3 19.67
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.5 1.53 99.6 0.59 17.8 6.7
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 1F41 1.5 63.549 1.36 37929 1896 99.57 0.1702 0.1687 0.1758 0.198 0.1995
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.555 f_angle_d 1.508 f_chiral_restr 0.055 f_bond_d 0.012 f_plane_restr 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1785 Nucleic Acid Atoms Solvent Atoms 233 Heterogen Atoms 62
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHENIX phasing