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Crystal structure of a ternary complex of phospholipase A2 with indomethacin and nimesulide at 2.9 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2ARM
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.8 298 Ammonium Sulphate, PEG4000, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.48 50.45
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 52.88 α = 90 b = 52.88 β = 90 c = 48.42 γ = 90
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 292 IMAGE PLATE MAR scanner 345 mm plate Mirror 2007-01-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU300 1.54132
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.9 17.44 98.2 2989 2923 42.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.9 3 96.2
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 2ARM 2.9 17.44 2989 2923 140 96.7 0.201 0.189 0.189 0.232 RANDOM 31
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] 2.97 2.97 -5.93
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.8 c_scangle_it 4.18 c_mcangle_it 3.06 c_scbond_it 2.77 c_mcbond_it 1.82 c_angle_deg 1.7 c_improper_angle_d 0.88 c_bond_d 0.009 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.8 c_scangle_it 4.18 c_mcangle_it 3.06 c_scbond_it 2.77 c_mcbond_it 1.82 c_angle_deg 1.7 c_improper_angle_d 0.88 c_bond_d 0.009 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 944 Nucleic Acid Atoms Solvent Atoms 51 Heterogen Atoms 46
Software Software Software Name Purpose CNS refinement MAR345 data collection DENZO data reduction SCALEPACK data scaling AMoRE phasing