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Crystal structure of human carbonic anhydrase isozyme II with 3-methylthiobenzimidazo[1,2-c][1,2,3]thiadiazol-7-sulfonamide
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2NNS PDB ENTRY 2NNS
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 298 Crystallization buffer was 0.1M sodium BICINE, pH9.0, 0.2M ammonium sulfate and 2M sodium malonate, pH7.0 made from 1M sodium BICINE and 3.4M sodium malonate, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.1 40.5
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.14 α = 90 b = 40.927 β = 104.23 c = 72.036 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 IMAGE PLATE MAR scanner 345 mm plate mirrors 2007-09-27 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B 0.84230 EMBL/DESY, HAMBURG BW7B
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 1.438 24.456 97 0.056 0.056 7.015 4.1 42194 42194 14
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) 1.44 1.52 89.3 0.431 0.431 1.7 4 5634
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 MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 2NNS 1.44 23.81 42193 42193 4248 97.63 0.178 0.178 0.175 0.1729 0.206 0.2041 RANDOM 16.481
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] 0.39 -0.37 -0.35 -0.23
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.178 r_dihedral_angle_4_deg 21.849 r_dihedral_angle_3_deg 12.26 r_dihedral_angle_1_deg 6.219 r_sphericity_free 3.882 r_sphericity_bonded 3.114 r_scangle_it 2.796 r_scbond_it 1.986 r_rigid_bond_restr 1.412 r_mcangle_it 1.372
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.178 r_dihedral_angle_4_deg 21.849 r_dihedral_angle_3_deg 12.26 r_dihedral_angle_1_deg 6.219 r_sphericity_free 3.882 r_sphericity_bonded 3.114 r_scangle_it 2.796 r_scbond_it 1.986 r_rigid_bond_restr 1.412 r_mcangle_it 1.372 r_angle_refined_deg 1.245 r_mcbond_it 0.832 r_nbtor_refined 0.305 r_symmetry_hbond_refined 0.207 r_nbd_refined 0.19 r_xyhbond_nbd_refined 0.16 r_symmetry_vdw_refined 0.16 r_chiral_restr 0.087 r_metal_ion_refined 0.068 r_bond_refined_d 0.009 r_gen_planes_refined 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2049 Nucleic Acid Atoms Solvent Atoms 219 Heterogen Atoms 28
Software Software Software Name Purpose REFMAC refinement MOSFLM data reduction SCALA data scaling PDB_EXTRACT data extraction