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Neutron structure of cationic trypsin in complex with 2-aminopyridine
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4I8H
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 277 0.2 M ammonium sulfate, 0.1 M Hepes pH 7.5, 16% (w/v) PEG 8000
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 55.096 α = 90 b = 58.701 β = 90 c = 67.631 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 neutron 295 IMAGE PLATE MAATEL BIODIFF 2015-07-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 NUCLEAR REACTOR FRM II BEAMLINE BIODIFF 2.675 FRM II BIODIFF
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 1.42 25 90.7 0.094 8.493 2.6 38142
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 1.42 1.45 69.9 0.414 2.051 2
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-Free (Depositor) R-Free Selection Details Mean Isotropic B NEUTRON DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 4I8H 1.42 22.166 1.35 38107 1913 90.61 0.1676 0.1656 0.2056 Random selection
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 f_dihedral_angle_d 11.602 f_angle_d 0.98 f_chiral_restr 0.085 f_plane_restr 0.006 f_bond_d 0.005
Software Software Software Name Purpose PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling PHASER phasing Coot model building