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The crystal structure of the human carbonic anhydrase II in complex with a 1,1'-biphenyl-4-sulfonamide inhibitor
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CA2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.6 293 Na-Citrate, Tris-HCl
Crystal Properties Matthews coefficient Solvent content 2.07 40.58
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.229 α = 90 b = 41.34 β = 104.27 c = 71.804 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 RIGAKU SATURN 944 2014-11-14 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF 1.54178
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 50 95 0.052 23.7 4.2 30330
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 1.6 1.63 75.3 0.148 5.8 2.2
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION FOURIER SYNTHESIS FREE R-VALUE 1CA2 1.6 50 29754 1478 93.1 0.172 0.1764 0.197 0.1984 Random selection 15.6
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] -2.157 -1.224 2.257 -0.1
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 2.885 c_scbond_it 1.967 c_mcangle_it 1.72 c_angle_d 1.457 c_mcbond_it 1.149 c_bond_d 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2076 Nucleic Acid Atoms Solvent Atoms 267 Heterogen Atoms 32
Software Software Software Name Purpose CNS refinement PDB_EXTRACT data extraction HKL-2000 data reduction HKL-2000 data scaling CrystalClear data collection CNS phasing