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CRYSTAL STRUCTURE OF BOVINE GAMMA-CHYMOTRYPSIN
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1GCT PDB ENTRY 1GCT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 5.6 ALPHA-CHYMOTRYPSIN WAS DISSOLVED IN POTASSIUM BORATE (PH8.6) AND WAS INCUBATED AT 310K FOR 6 HOURS. SOLID AMMONIUM SULFATE WAS ADDED TO THE SOLUTION, AND THE PRECIPITATE FORMED WAS RECOVERED AND RE-DISSOLVED WITH WATER. CRYSTALLIZATION WAS DONE WITH A SITTING-DROP VAPOR-DIFFUSION PROCEDURE, IN WHICH PROTEIN SOLUTION (15MG/ML) CONTAINING 10MM CACODYLATE, 0.75% SATURATED ACETYLTRIMETHYL AMMONIUM AND 45% SATURATED AMMONIUM SULFATE WAS EQUILIBRATED AGAINST 65% SATURATED AMMONIUM SULFATE AT 293K., pH 5.6, vapor diffusion - sitting drop
Crystal Properties Matthews coefficient Solvent content 2.29 46.28
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 69.52 α = 90 b = 69.52 β = 90 c = 97.81 γ = 90
Symmetry Space Group P 42 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 292 IMAGE PLATE RIGAKU RAXIS IIC YALE MIRRORS 1995-10-24 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RUH2R
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 1.6 69.5 97.8 0.055 15.1 10.3 31740 1 19
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) 1.6 1.65 94.7 0.208 3.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT POSTERIORI PDB ENTRY 1GCT 1.6 5 2 30329 2496 97.3 0.191 0.191 0.1877 0.19 0.1859 RANDOM 21.2
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]
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 26.6 x_scangle_it 2.5 x_mcangle_it 2 x_scbond_it 2 x_mcbond_it 1.5 x_angle_deg 1.42 x_improper_angle_d 1.26 x_bond_d 0.007 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 26.6 x_scangle_it 2.5 x_mcangle_it 2 x_scbond_it 2 x_mcbond_it 1.5 x_angle_deg 1.42 x_improper_angle_d 1.26 x_bond_d 0.007 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1821 Nucleic Acid Atoms Solvent Atoms 127 Heterogen Atoms 5
Software Software Software Name Purpose CONTROL data collection PROCESS data reduction X-PLOR model building X-PLOR refinement CONTROL data reduction PROCESS data scaling X-PLOR phasing