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Crystal Structure of the Bowman-Birk Inhibitor from Vigna unguiculata Seeds in Complex with Beta-trypsin at 1.55 Angstrons Resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1TAB PDB entry 1TAB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 294 0.1M Hepes-Na buffer pH 7.5, 5% (v/v) PEG 400, 2.0M ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 2.3 46
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.497 α = 90 b = 61.109 β = 90 c = 79.264 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 MARRESEARCH mirrors 2003-07-28 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON LNLS BEAMLINE D03B-MX1 1.431 LNLS D03B-MX1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 1.55 40 99.5 0.06 30.5 6.3 43170 43170 17.8
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.55 1.61 98.6 0.353 4.9 6 4216
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 entry 1TAB 1.55 30 40965 40965 2145 99.51 0.15513 0.15513 0.15445 0.1603 0.16852 0.1755 RANDOM 20.53
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] 0.6 -0.6
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.527 r_dihedral_angle_4_deg 15.689 r_dihedral_angle_3_deg 10.612 r_dihedral_angle_1_deg 6.162 r_scangle_it 2.827 r_scbond_it 1.786 r_angle_refined_deg 1.483 r_mcangle_it 1.29 r_mcbond_it 0.755 r_nbtor_refined 0.315
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.527 r_dihedral_angle_4_deg 15.689 r_dihedral_angle_3_deg 10.612 r_dihedral_angle_1_deg 6.162 r_scangle_it 2.827 r_scbond_it 1.786 r_angle_refined_deg 1.483 r_mcangle_it 1.29 r_mcbond_it 0.755 r_nbtor_refined 0.315 r_nbd_refined 0.206 r_symmetry_vdw_refined 0.202 r_metal_ion_refined 0.132 r_symmetry_hbond_refined 0.13 r_xyhbond_nbd_refined 0.116 r_chiral_restr 0.091 r_bond_refined_d 0.011 r_gen_planes_refined 0.006 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_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2101 Nucleic Acid Atoms Solvent Atoms 331 Heterogen Atoms 54
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALEPACK data scaling CNS phasing