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Design of Specific Peptide Inhibitors of Phospholipase A2 (PLA2): Crystal Structure of the Complex of PLA2 with a Highly Potent Peptide Val-Ile-Ala-Lys at 2.7A Resolution
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.8 298 0.2M ammonoium sulfate, 30% PEG4000, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.43 49.34
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 53.06 α = 90 b = 53.06 β = 90 c = 48.524 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 283 IMAGE PLATE MARRESEARCH 2005-11-11 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) 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 52.7 96.2 3181 3181
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.7 2.73 95
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 2.7 52.7 3181 3181 332 93.16 0.221 0.19337 0.18938 0.23098 RANDOM 44.879
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] 0.27 0.27 -0.55
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 20.402 r_scangle_it 5.085 r_dihedral_angle_1_deg 2.881 r_scbond_it 2.875 r_angle_refined_deg 2.563 r_mcangle_it 2.246 r_mcbond_it 1.129 r_nbd_refined 0.411 r_symmetry_vdw_refined 0.35 r_xyhbond_nbd_refined 0.221
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 20.402 r_scangle_it 5.085 r_dihedral_angle_1_deg 2.881 r_scbond_it 2.875 r_angle_refined_deg 2.563 r_mcangle_it 2.246 r_mcbond_it 1.129 r_nbd_refined 0.411 r_symmetry_vdw_refined 0.35 r_xyhbond_nbd_refined 0.221 r_symmetry_hbond_refined 0.195 r_chiral_restr 0.11 r_bond_refined_d 0.014 r_gen_planes_refined 0.01
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 973 Nucleic Acid Atoms Solvent Atoms 57 Heterogen Atoms 5
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling AMoRE phasing