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Crystal structure of the complex between Carbonic Anhydrase II and a spin-labeled sulfonamide incorporating TEMPO moiety
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1CA2 PDB ENTRY 1CA2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 277 50mM Tris.HCl pH 7.7-7.8, 2mM sodium 4-(hydroxymercury)benzoate, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.09 41.19
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.13 α = 90 b = 41.5 β = 104.3 c = 72.31 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 2008-06-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SEALED TUBE OXFORD DIFFRACTION ENHANCE ULTRA 1.5418
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 1.84 20 89.4 0.09 13.1 2.9 20861 20988 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-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1CA2 1.85 11.81 19758 1040 99.5 0.19469 0.19231 0.2403 0.1601 RANDOM 13.824
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] 0.06 0.16 -0.12
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.611 r_dihedral_angle_4_deg 18.228 r_dihedral_angle_3_deg 16.366 r_dihedral_angle_1_deg 5.942 r_scangle_it 2.341 r_scbond_it 1.586 r_angle_refined_deg 1.289 r_mcangle_it 0.923 r_mcbond_it 0.716 r_nbtor_refined 0.305
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.611 r_dihedral_angle_4_deg 18.228 r_dihedral_angle_3_deg 16.366 r_dihedral_angle_1_deg 5.942 r_scangle_it 2.341 r_scbond_it 1.586 r_angle_refined_deg 1.289 r_mcangle_it 0.923 r_mcbond_it 0.716 r_nbtor_refined 0.305 r_chiral_restr 0.209 r_nbd_refined 0.198 r_symmetry_vdw_refined 0.173 r_xyhbond_nbd_refined 0.124 r_symmetry_hbond_refined 0.1 r_metal_ion_refined 0.063 r_bond_refined_d 0.009 r_gen_planes_refined 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2078 Nucleic Acid Atoms Solvent Atoms 217 Heterogen Atoms 28
Software Software Software Name Purpose CrysalisPro data collection AMoRE phasing REFMAC refinement CrysalisPro data reduction CrysalisPro data scaling