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Cationic trypsin in complex with the Spinacia oleracea trypsin inhibitor III (SOTI-III)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2XTT PDB ENTRY 2XTT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 292 TRYPSIN (SIGMA T1426) WAS DUSIKVED UB 1MM HCL (PH 2.0), 10 MM CACL2, PURIFIED ON A SUPERDEX 75 16/60 COLUMN (BUFFER: 25 MM MES PH 5.5, 50 MM NACL AND 10 MM CACL2). CRYSTALS GREW FROM EQUAL VOL. OF TRYPSIN (11.5 MG/ML) INCUBATED WITH LYOPHILIZED SOTI-III (2.5 MM) AND PRECIPITANT SOLUTION (0.1 M IMIDAZOLE PH 7.5, 12 % (W/V) PEG 8K) IN HANGING DROP CRYSTALLIZATION PLATES AT 19C.
Crystal Properties Matthews coefficient Solvent content 2.04 39.76
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 49.35 α = 90 b = 66.82 β = 90.17 c = 108.89 γ = 90
Symmetry Space Group P 1 21 1
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 MARMOSAIC 225 mm CCD 2010-11-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON BESSY BEAMLINE 14.1 BESSY 14.1
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 1.7 15 97.3 0.08 11.6 3.8 75899 2 13.88
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 1.7 1.8 93.7 0.49 2.85 3.8
Refinement Statistics Diffraction ID Structure Solution 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-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 2XTT 1.702 32.04 1.99 75888 3794 97.72 0.1808 0.1787 0.1757 0.2209 0.215
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] 2.6926 -0.6891 0.6962 -3.3888
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.606 f_angle_d 1.304 f_chiral_restr 0.09 f_bond_d 0.01 f_plane_restr 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5600 Nucleic Acid Atoms Solvent Atoms 580 Heterogen Atoms 89
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing