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Crystal Structure of a Benzohydroxamic Acid/Vanadate complex bound to chymotrypsin A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2GCH PDB ID 2GCH
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5.6 298 50 mM sodium cacodylate pH 5.6, 0.75% saturated cetyltrimethylammonium bromide, 45% saturated ammonium sulfate, 100 mM NaI, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.26 46.47
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.989 α = 90 b = 68.989 β = 90 c = 95.892 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 77.2 CCD ADSC QUANTUM 315 2001-09-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C APS 14-BM-C
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 1.5 50 98.9 0.074 22 38061 37642
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) 1.5 1.55 94.8 0.47 2.3
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 (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION Phases from PDB model FREE R PDB ID 2GCH 1.5 50 35582 35191 1869 0.1986 0.1986 0.1807 0.2428 0.2239 RANDOM
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 1960.5
RMS Deviations Key Refinement Restraint Deviation s_similar_adp_cmpnt 0.063 s_non_zero_chiral_vol 0.056 s_zero_chiral_vol 0.05 s_from_restr_planes 0.0298 s_angle_d 0.025 s_anti_bump_dis_restr 0.022 s_bond_d 0.009 s_similar_dist s_rigid_bond_adp_cmpnt s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1736 Nucleic Acid Atoms Solvent Atoms 207 Heterogen Atoms 19
Software Software Software Name Purpose SHELX refinement PDB_EXTRACT data extraction HKL-2000 data collection DENZO data reduction SCALEPACK data scaling CNS phasing SHELXL-97 refinement