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POTASSIUM CHANNEL KCSA-FAB WITH TETRAHEXYLAMMONIUM
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1K4C PDB ENTRY 1K4C
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.4 CRYSTALLIZATION CONDITIONS: 18-25% PEG400, 50 MM SODIUM REMARK 280 ACETATE, 50 MM MAGNESIUM ACETATE, pH 5.4
Crystal Properties Matthews coefficient Solvent content 3.71 66.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 154.615 α = 90 b = 154.615 β = 90 c = 75.953 γ = 90
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 MARRESEARCH 2007-11-19 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID APS 22-ID
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.4 50 98.1 0.05 17.1 3.31 32854 -3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.4 2.54 97.7 0.58 2.1 3.31
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1K4C 2.4 28.64 32852 1732 98.23 0.19436 0.19148 0.1971 0.24823 0.2469 RANDOM 71.704
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] 0.03 0.03 -0.07
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.154 r_dihedral_angle_4_deg 21.72 r_dihedral_angle_3_deg 19.314 r_mcangle_it 8.27 r_dihedral_angle_1_deg 7.098 r_scbond_it 5.936 r_mcbond_it 5.586 r_mcbond_other 5.585 r_angle_refined_deg 1.697 r_angle_other_deg 0.833
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.154 r_dihedral_angle_4_deg 21.72 r_dihedral_angle_3_deg 19.314 r_mcangle_it 8.27 r_dihedral_angle_1_deg 7.098 r_scbond_it 5.936 r_mcbond_it 5.586 r_mcbond_other 5.585 r_angle_refined_deg 1.697 r_angle_other_deg 0.833 r_chiral_restr 0.086 r_bond_refined_d 0.014 r_gen_planes_refined 0.008 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_mcangle_other r_scbond_other r_scangle_it r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4091 Nucleic Acid Atoms Solvent Atoms 87 Heterogen Atoms 128
Software Software Software Name Purpose REFMAC refinement XDS data reduction XSCALE data scaling PHASER phasing