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Structure of a K channel with an amide to ester substitution in the selectivity filter
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 293 20-25% PEG 400, 50 mM Magnesium Acetate, 0.3 M KCl, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K, pH 6.50
Crystal Properties Matthews coefficient Solvent content 3.98 69.11
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 155.884 α = 90 b = 155.884 β = 90 c = 75.524 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 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 2.25 60 98.1 0.073 17.5 3.8 42808 35.3
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 2.25 2.39 96.3 0.51 2.2 3.2
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 2.25 49.3 42808 2146 99.3 0.233 0.233 0.2276 0.242 0.2372 RANDOM 58.9
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] 4.16 4.16 -8.31
RMS Deviations Key Refinement Restraint Deviation c_angle_deg 1.6 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
RMS Deviations Key Refinement Restraint Deviation c_angle_deg 1.6 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 c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d c_improper_angle_d_na c_improper_angle_d_prot c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4056 Nucleic Acid Atoms Solvent Atoms 90 Heterogen Atoms 31
Software Software Software Name Purpose CNS refinement PDB_EXTRACT data extraction MOLREP phasing