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Crystal complex between bovine trypsin and Veronica hederifolia trypsin inhibitor
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1SFI PDB ENTRY 1SFI
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 8 CRYSTALS OF TRYPSIN WERE GROWN IN 2.5M AMMONIUM SULPHATE, 6MM CALCIUM CHLORIDE, 0.1M TRIS PH 8.15, 60MM BENZAMIDINE. THEY WERE BACKSOAKED IN 0.1M NA PHOSPHATE PH 5.8, 2.5M AMMONIUM SULPHATE TO REMOVE BENZAMIDINE. CRYSTALS WERE MOVED TO 2.5M AMMONIUM SULPHATE, 1MM CALCIUM CHLORDIE, 0.1M TRIS PH 8 AND PEPTIDE INHIBITOR ADDED AT 10MM AND INCUBATED FOR 16 HOURS.
Crystal Properties Matthews coefficient Solvent content 2.58 51.96
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.657 α = 90 b = 63.928 β = 90 c = 71.698 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 100 CCD ADSC QUANTUM 4 MIRROR 2003-10-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX14.1 SRS PX14.1
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 2.25 47.73 97.5 0.12 11.9 4.2 13342 1.4
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 2.25 2.33 84.9 0.59 1.4 3.6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) 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 1SFI 2.25 47.73 12681 661 96.9 0.196 0.194 0.2064 0.253 0.2593 RANDOM 73.66
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] 3.66 -2.78 -0.88
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.14 r_dihedral_angle_4_deg 21.147 r_dihedral_angle_3_deg 15.568 r_dihedral_angle_1_deg 7.853 r_scangle_it 3.316 r_scbond_it 2.481 r_angle_refined_deg 1.887 r_mcangle_it 1.555 r_mcbond_it 0.93 r_nbtor_refined 0.301
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 41.14 r_dihedral_angle_4_deg 21.147 r_dihedral_angle_3_deg 15.568 r_dihedral_angle_1_deg 7.853 r_scangle_it 3.316 r_scbond_it 2.481 r_angle_refined_deg 1.887 r_mcangle_it 1.555 r_mcbond_it 0.93 r_nbtor_refined 0.301 r_symmetry_hbond_refined 0.276 r_nbd_refined 0.239 r_xyhbond_nbd_refined 0.18 r_symmetry_vdw_refined 0.179 r_chiral_restr 0.13 r_bond_refined_d 0.022 r_gen_planes_refined 0.007 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_mcangle_other r_scbond_other r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1798 Nucleic Acid Atoms Solvent Atoms 110 Heterogen Atoms 17
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALEPACK data scaling AMoRE phasing