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Crystal structure of the complex formed between groupII phospholipase A2 and anti-inflammatory agent 2-[(2,6-Dichlorophenyl)amino] benzeneacetic acid at 2.7A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1FB2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.8 297 0.2M Ammonium sulphate, 50% PEG, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 297K
Crystal Properties Matthews coefficient Solvent content 2.5 50
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.05 α = 90 b = 53.05 β = 90 c = 48.43 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 298 IMAGE PLATE MARRESEARCH MIRROR 2004-03-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU300 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.7 20 90 0.119 7.3 12.41 3463 3463 36.4
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.7 2.76 75 0.206 2.1
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 1FB2 2.71 18.76 3463 3463 175 87.8 0.198 0.196 0.196 0.238 RANDOM 27
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] 2.38 2.38 -4.76
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.5 c_scangle_it 3.38 c_mcangle_it 2.61 c_scbond_it 2.25 c_mcbond_it 1.53 c_angle_deg 1.5 c_improper_angle_d 0.8 c_bond_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 944 Nucleic Acid Atoms Solvent Atoms 53 Heterogen Atoms 19
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling AMoRE phasing