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A Crystal Structure of Trypsin Complexed with BPTI (Bovine Pancreatic Trypsin Inhibitor) by X-ray/Neutron Joint Refinement
NEUTRON DIFFRACTION - X-RAY DIFFRACTION
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 298 (NH4)2SO4, CaCl2, HEPES, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3.31 62.86
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 75.604 α = 90 b = 85.361 β = 90 c = 122.551 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 neutron 293 IMAGE PLATE NEUTRON IMAGING PLATE 2008-11-21 M SINGLE WAVELENGTH 2 1 x-ray 293 CCD ADSC QUANTUM 4r 2009-06-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 NUCLEAR REACTOR 2 SYNCHROTRON PHOTON FACTORY BEAMLINE BL-6A Photon Factory BL-6A
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) CC (Half) R Split (All) 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 2.15 37.89 92.7 0.144 20552
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Rrim I (All) Rpim I (All) CC (Half) R Split (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.15 2.23 0.363 0.387
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (I) Cut-off Sigma (F) 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 NEUTRON DIFFRACTION 2.15 37.89 21949 20345 1038 0.209 0.226 RANDOM 24.26 X-RAY DIFFRACTION 1.6 35.94 52169 2630 99 0.198 0.1822 0.209 0.1968 RANDOM
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 -2.32 -0.59 2.55 -5.39 2.84
RMS Deviations Key Refinement Restraint Deviation c_improper_angle_d 21.07 c_dihedral_angle_d 15.7 c_dihedral_angle_d 15.65 c_angle_deg 2.1 c_improper_angle_d 1.02 c_bond_d 0.016 c_bond_d 0.013
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2083 Nucleic Acid Atoms Solvent Atoms 120 Heterogen Atoms 26
Software Software Software Name Purpose nCNS refinement DENZO data reduction SCALEPACK data scaling nCNS phasing