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FIRST STRUCTURAL EVIDENCE OF THE INHIBITION OF PHOSPHOLIPASE A2 BY ARISTOLOCHIC ACID: CRYSTAL STRUCTURE OF A COMPLEX FORMED BETWEEN PHOSPHOLIPASE A2 AND ARISTOLOCHIC ACID
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CL5
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 298 20mM Sodium cacodylate, 1.4M Ammonium sulfate, 4mM Calcium chloride, 3% dioxane, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.53 50.97
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 76.05 α = 90 b = 89.48 β = 90 c = 76.87 γ = 90
Symmetry Space Group C 2 2 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 180 IMAGE PLATE MARRESEARCH 1999-06-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 EMBL/DESY, HAMBURG X11
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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 1.7 30 99 0.045 0.045 10.2 6.6 29231 29231 25.5
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.7 1.73 97.9 0.21 0.182 4.2 2.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1CL5 1.7 20 28818 28818 1413 98.9 0.212 0.212 0.184 0.201 RANDOM 27.9
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] -1.15 0.56 0.6
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23 c_improper_angle_d 1.82 c_scangle_it 1.64 c_angle_deg 1.5 c_mcangle_it 1.15 c_scbond_it 1.12 c_mcbond_it 0.65 c_bond_d 0.01 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23 c_improper_angle_d 1.82 c_scangle_it 1.64 c_angle_deg 1.5 c_mcangle_it 1.15 c_scbond_it 1.12 c_mcbond_it 0.65 c_bond_d 0.01 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1888 Nucleic Acid Atoms Solvent Atoms 315 Heterogen Atoms 74
Software Software Software Name Purpose MAR345 data collection SCALEPACK data scaling AMoRE phasing CNS refinement