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Crystal Structure of a Phopholipase A2 Monomer with Isoleucine at Second Position
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1LFJ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 293 10 mM SODIUM PHOSPHATE, 2mM CaCl2, 25% ETHANOL, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.27 45.88
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.817 α = 90 b = 42.817 β = 90 c = 65.994 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 mirrors 2002-06-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
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 1.86 20 98 0.068 0.073 13 5.5 9835 -3 23.9
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) 1.86 1.93 85 0.3 0.31 2.2 4.2 831
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-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1LFJ 1.86 20 9477 9477 506 94.5 0.199 0.197 0.228 RANDOM 26.2
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 c_dihedral_angle_d 22.2 c_scangle_it 3.79 c_scbond_it 2.51 c_mcangle_it 2.22 c_mcbond_it 1.43 c_angle_deg 1.1 c_improper_angle_d 0.72 c_bond_d 0.005 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.2 c_scangle_it 3.79 c_scbond_it 2.51 c_mcangle_it 2.22 c_mcbond_it 1.43 c_angle_deg 1.1 c_improper_angle_d 0.72 c_bond_d 0.005 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 923 Nucleic Acid Atoms Solvent Atoms 84 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling AMoRE phasing CNS refinement