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STRUCTURAL BASIS FOR SELECTIVITY OF A SMALL MOLECULE, S1-BINDING, SUB-MICROMOLAR INHIBITOR OF UROKINASE TYPE PLASMINOGEN ACTIVATOR
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1FXA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 7.5 crystallization conditions : Crystals of truncated human factor Xa were
grown in hanging drops from equal volumes of protein solution
(5.0 mg/ml in 20 mM Hepes, 50 mM ammonimum sulfate, pH 8.0) and well
solution (25 % PEG 5K, 0.10 M Hepes, 0.2 M ammonium sulfate, pH 7.5)., VAPOR DIFFUSION
Crystal Properties Matthews coefficient Solvent content 2.68 49
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 81.82 α = 90 b = 81.82 β = 90 c = 108.79 γ = 120
Symmetry Space Group P 31 2 1
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 RIGAKU RAXIS IV++ MSC MIRRORS 1999-03-04 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 1.64 70.86 60 0.072 6.5 1.9 21969 1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.95 2.04 32.2 0.265 1.6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION X-PLOR 1FXA 1.95 7.5 2 18528 1835 60.4 0.218 0.218 0.2667 0.307
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 x_dihedral_angle_d 24.1 x_angle_deg 3.9 x_improper_angle_d 0.46 x_bond_d 0.019
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4534 Nucleic Acid Atoms Solvent Atoms 2136 Heterogen Atoms
Software Software Software Name Purpose bioteX data collection bioteX data reduction X-PLOR model building Quanta model building Insight II model building X-PLOR refinement bioteX data scaling X-PLOR phasing