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Ion selectivity in a semi-synthetic K+ channel locked in the conductive conformation
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6 293 20-25% PEG 400, 50 mM Magnesium acetate, 150 mM KCl, pH 6.0. Crystals were cryoprotected by increasing PEG concentration to 40%, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 3.83 67.91
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 155.724 α = 90 b = 155.724 β = 90 c = 75.741 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 ADSC QUANTUM 315 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X25 NSLS X25
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 1.72 31.2 98.1 0.064 20.7 2.9 89856 24.3
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) 1 1.72 1.78 87.6 0.38 2 1.9
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 1.72 31.2 89856 8978 93.4 0.233 0.233 0.2288 0.242 0.2427 RANDOM 35.1
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] 3.08 3.08 -6.16
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 25.6 c_scangle_it 3.15 c_mcangle_it 2.2 c_scbond_it 2.09 c_improper_angle_d 1.9 c_angle_deg 1.6 c_mcbond_it 1.39 c_bond_d 0.013 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 25.6 c_scangle_it 3.15 c_mcangle_it 2.2 c_scbond_it 2.09 c_improper_angle_d 1.9 c_angle_deg 1.6 c_mcbond_it 1.39 c_bond_d 0.013 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4034 Nucleic Acid Atoms Solvent Atoms 266 Heterogen Atoms 38
Software Software Software Name Purpose CNS refinement PDB_EXTRACT data extraction CBASS data collection DENZO data reduction SCALEPACK data scaling