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Cationic trypsin in complex with mutated Spinacia oleracea trypsin inhibitor III (SOTI-III) (F14A)
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 DISOLVED IN 1 MM 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 VOLUMES OF TRYPSIN (11.5 MG/ML) INCUBATED WITH LYOPHILIZED SOTI-III F14A (1.5MM) AND PRECIPITANT SOLUTION (0.1M BICINE PH 9, 20% (W/V) PEG 6000) IN HANGING DROP CRYSTALLIZATION PLATES AT 19C.
Crystal Properties Matthews coefficient Solvent content 2.02 39.11
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 48.51 α = 90 b = 68.38 β = 93.25 c = 109.79 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 2011-09-28 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 2 20 98.7 0.14 8.3 3.2 48020 2 10.57
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 2.1 98.5 0.45 2.9 3.2
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 2 19.889 1.99 48006 2405 98.82 0.1694 0.1667 0.1639 0.2202 0.2148
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] 3.845 -0.9015 -1.7329 -2.1121
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.015 f_angle_d 0.862 f_chiral_restr 0.06 f_bond_d 0.004 f_plane_restr 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5601 Nucleic Acid Atoms Solvent Atoms 656 Heterogen Atoms 19
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing