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Crystal structure of a BPTI variant (Cys14->Ser) in complex with trypsin
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2FI3 PDB ENTRY 2FI3
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 296 2 M ammonium sulfate, 0.1 M HEPES, 0.02% sodium azide , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Crystal Properties Matthews coefficient Solvent content 3.2 61.59
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 74.783 α = 90 b = 82.435 β = 90 c = 123.965 γ = 90
Symmetry Space Group I 2 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD NONIUS KAPPA CCD2000 OSMIC CONFOCAL MAX-FLUX (GREEN) 2005-01-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE ENRAF-NONIUS FR591 1.5418
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 1.58 50 98.5 0.048 20.6 7.7 52683 51888 -3 21.8
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 1.58 1.64 90.9 0.247 4.4 4.1 4747
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 2FI3 1.58 20 -3 52743 51872 4226 98.3 0.2186 0.2186 0.2172 0.2155 0.2347 0.2271 RANDOM, same test set as for pdb ID 2FI3 16
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 25.5 c_scangle_it 2.165 c_mcangle_it 1.558 c_scbond_it 1.516 c_angle_deg 1.34 c_mcbond_it 1.025 c_bond_d 0.005 c_bond_d_na c_bond_d_prot c_angle_d
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 25.5 c_scangle_it 2.165 c_mcangle_it 1.558 c_scbond_it 1.516 c_angle_deg 1.34 c_mcbond_it 1.025 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 c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2074 Nucleic Acid Atoms Solvent Atoms 240 Heterogen Atoms 67
Software Software Software Name Purpose HKL-2000 data collection SCALEPACK data scaling CNS refinement HKL-2000 data reduction CNS phasing