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Human Carbonic Anhydrase II complexed with two-prong inhibitors
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2CBA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.7 277 2.5 M (NH4)2SO4, Tris-SO4, methylmercuric acetate, pH 7.7, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.12 41.91
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.557 α = 90 b = 41.704 β = 104.38 c = 72.71 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 ADSC QUANTUM 4 mirrors 2005-04-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE F1 0.9124 CHESS F1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 0.99 60 93 0.093 0.093 14.5 3.6 127404 127404 7.27
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 0.99 1.03 53.9 0.479 0.479 2 1.9 7333
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 (All) 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 AB INITIO FREE R 2CBA 0.99 60 126056 126056 1328 91.8 0.1229 0.1233 0.1233 0.1309 0.1349 0.1405 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 17 2015.64 2392.4
RMS Deviations Key Refinement Restraint Deviation s_approx_iso_adps 0.103 s_anti_bump_dis_restr 0.098 s_non_zero_chiral_vol 0.095 s_zero_chiral_vol 0.094 s_similar_adp_cmpnt 0.052 s_angle_d 0.026 s_from_restr_planes 0.0196 s_bond_d 0.013 s_rigid_bond_adp_cmpnt 0.005 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2074 Nucleic Acid Atoms Solvent Atoms 285 Heterogen Atoms 65
Software Software Software Name Purpose SHELX model building SHELXL-97 refinement HKL-2000 data reduction SCALEPACK data scaling CNS phasing