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Crystal structure of porcine alpha trypsin bound with auto catalyticaly produced native peptide at 2.15 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1QQU pdb code 1qqu
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.7 293 1.5M ammonium sulphate, pH 6.70, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 1.89 34.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 46.945 α = 90 b = 53.921 β = 90 c = 77.245 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 x-ray 293 IMAGE PLATE MARRESEARCH M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200
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 2.15 76.7 0.14 3.5 11187 9847
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) 2.15 2.23 0.14 3.5 9847
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT pdb code 1qqu 2.15 19.31 11187 9425 467 88.44 0.193 0.193 0.193 0.1919 0.22787 0.253 RANDOM 17.896
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] -1.61 0.37 1.24
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 19.016 r_scangle_it 7.358 r_scbond_it 5.242 r_dihedral_angle_1_deg 4.676 r_mcangle_it 3.316 r_angle_refined_deg 2.597 r_mcbond_it 2.137 r_angle_other_deg 1.474 r_xyhbond_nbd_refined 0.747 r_symmetry_vdw_other 0.549
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 19.016 r_scangle_it 7.358 r_scbond_it 5.242 r_dihedral_angle_1_deg 4.676 r_mcangle_it 3.316 r_angle_refined_deg 2.597 r_mcbond_it 2.137 r_angle_other_deg 1.474 r_xyhbond_nbd_refined 0.747 r_symmetry_vdw_other 0.549 r_symmetry_vdw_refined 0.496 r_nbd_refined 0.391 r_nbd_other 0.256 r_symmetry_hbond_refined 0.234 r_chiral_restr 0.181 r_bond_refined_d 0.04 r_nbtor_other 0.022 r_gen_planes_refined 0.014 r_xyhbond_nbd_other 0.01 r_gen_planes_other 0.008 r_bond_other_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1704 Nucleic Acid Atoms Solvent Atoms 147 Heterogen Atoms 5
Software Software Software Name Purpose MAR345 data collection DENZO data reduction CNS refinement REFMAC refinement SCALEPACK data scaling CNS phasing