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Crystal Structure of gamma-Chymotrypsin at pH 9, cryo temperature
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1GCT 1GCT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 297 45% saturated ammonium sulfate, 0.75% saturated cetyltrimethylammonium bromide, 100 mM sodium iodide; sodium malonate
Crystal Properties Matthews coefficient Solvent content 2.17 43.25
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 69.067 α = 90 b = 69.067 β = 90 c = 95.803 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 100 CCD MARMOSAIC 300 mm CCD 2010-07-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-B 0.9 APS 23-ID-B
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 1.05 50 99.2 0.063 12.3 16.7 107355
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 1.05 1.09 93.8 0.766 5.7
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 FOURIER SYNTHESIS THROUGHOUT 1GCT 1.05 56.03 101897 5388 99.1 0.123 0.122 0.1215 0.14 0.1399 RANDOM 14.24
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] 0.41 0.41 -0.83
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.459 r_sphericity_free 34.819 r_sphericity_bonded 12.707 r_dihedral_angle_3_deg 11.716 r_dihedral_angle_4_deg 7.39 r_dihedral_angle_1_deg 7.025 r_rigid_bond_restr 2.306 r_angle_refined_deg 1.648 r_angle_other_deg 1.094 r_chiral_restr 0.098
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.459 r_sphericity_free 34.819 r_sphericity_bonded 12.707 r_dihedral_angle_3_deg 11.716 r_dihedral_angle_4_deg 7.39 r_dihedral_angle_1_deg 7.025 r_rigid_bond_restr 2.306 r_angle_refined_deg 1.648 r_angle_other_deg 1.094 r_chiral_restr 0.098 r_bond_refined_d 0.013 r_gen_planes_refined 0.009 r_bond_other_d 0.003 r_gen_planes_other 0.003 r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_it r_mcbond_other r_mcangle_it r_mcangle_other r_scbond_it r_scbond_other r_scangle_it r_scangle_other r_long_range_B_refined r_long_range_B_other
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1833 Nucleic Acid Atoms Solvent Atoms 390 Heterogen Atoms 17
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALEPACK data scaling PDB_EXTRACT data extraction PHENIX phasing