☰ Navigation Tabs
Crystal Structure of Human Carbonic Anhydrase II In-complex with Acetohexamide at 2.6 A Resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3KS3
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.4 291 Crystallization solution was comprised of Tris-HCl buffer (50 mM, pH=7.4), and 2.9 M ammonium sulfate in sitting drop vapor diffusion setup. Crystallization drop was comprised of hCA-II, Acetohexamide and reservoir buffer. 25% v/v glycerol was used as cryoprotectant.
Crystal Properties Matthews coefficient Solvent content 2.05 39.89
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.068 α = 90 b = 41.029 β = 104.19 c = 71.628 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 PIXEL Bruker PHOTON II 2023-03-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SEALED TUBE BRUKER D8 QUEST 1.5406
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) Rrim I (All) CC (Half) 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 2.6 19.85 98.22 0.26 0.948 11.8 3.7 7293
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.6 2.72 98.5 0.663 3.3
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 3KS3 2.6 19.85 7087 359 99.52 0.18058 0.17656 0.25858 0.224 RANDOM 12.813
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] -0.01 0.03 -0.51 0.45
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.52 r_dihedral_angle_3_deg 18.288 r_dihedral_angle_4_deg 14.156 r_dihedral_angle_1_deg 8.12 r_long_range_B_refined 3.991 r_long_range_B_other 3.483 r_angle_refined_deg 1.523 r_scangle_other 1.492 r_mcangle_it 1.376 r_mcangle_other 1.376
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.52 r_dihedral_angle_3_deg 18.288 r_dihedral_angle_4_deg 14.156 r_dihedral_angle_1_deg 8.12 r_long_range_B_refined 3.991 r_long_range_B_other 3.483 r_angle_refined_deg 1.523 r_scangle_other 1.492 r_mcangle_it 1.376 r_mcangle_other 1.376 r_angle_other_deg 1.186 r_scbond_it 0.942 r_scbond_other 0.832 r_mcbond_it 0.789 r_mcbond_other 0.786 r_chiral_restr 0.063 r_bond_refined_d 0.008 r_gen_planes_refined 0.006 r_bond_other_d 0.001 r_gen_planes_other 0.001 r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2049 Nucleic Acid Atoms Solvent Atoms 85 Heterogen Atoms 28
Software Software Software Name Purpose REFMAC refinement PROTEUM PLUS data reduction Aimless data scaling MOLREP phasing