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Deciphering the Mechanism of Carbonic Anhydrase Inhibition with Coumarins and Thiocoumarins
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 277 Tris.HCl pH 7.7-7.8 , sodium 4-(hydroxymercury)benzoate
Crystal Properties Matthews coefficient Solvent content 2.12 42.08
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.23 α = 90 b = 41.5 β = 104.5 c = 72.42 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 OXFORD SAPPHIRE CCD 2009-06-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SEALED TUBE OXFORD DIFFRACTION ENHANCE ULTRA 1.54
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 2 20 99.4 0.143 17.2 4.7 16696
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2 2.1 0.37
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1CA2 2 20 15729 837 99.5 0.2265 0.2231 0.2932 0.1802 RANDOM 13.443
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] 0.09 0.14 -0.35 0.33
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.478 r_dihedral_angle_4_deg 21.394 r_dihedral_angle_3_deg 18.761 r_dihedral_angle_1_deg 6.941 r_scangle_it 2.485 r_scbond_it 1.719 r_angle_refined_deg 1.551 r_mcangle_it 1.115 r_mcbond_it 0.667 r_nbtor_refined 0.306
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.478 r_dihedral_angle_4_deg 21.394 r_dihedral_angle_3_deg 18.761 r_dihedral_angle_1_deg 6.941 r_scangle_it 2.485 r_scbond_it 1.719 r_angle_refined_deg 1.551 r_mcangle_it 1.115 r_mcbond_it 0.667 r_nbtor_refined 0.306 r_symmetry_vdw_refined 0.239 r_nbd_refined 0.226 r_xyhbond_nbd_refined 0.189 r_symmetry_hbond_refined 0.173 r_chiral_restr 0.106 r_metal_ion_refined 0.041 r_bond_refined_d 0.012 r_gen_planes_refined 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2048 Nucleic Acid Atoms Solvent Atoms 223 Heterogen Atoms 14
Software Software Software Name Purpose SCALEPACK data scaling REFMAC refinement PDB_EXTRACT data extraction CrysalisPro data reduction