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Crystal structure of inactive conformation of KtrAB K+ transporter
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4J7C KtrB from 4J7C and KtrA-deltaC from 2HMS experimental model PDB 2HMS KtrB from 4J7C and KtrA-deltaC from 2HMS
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 8.5 293 100 mM Tris-HCl, 16-22% PEG 400, 100-200 mM CaCl2
Crystal Properties Matthews coefficient Solvent content 3.86 68.12
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 307.06 α = 90 b = 79.41 β = 98.1 c = 205.65 γ = 90
Symmetry Space Group C 1 2 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 ADSC QUANTUM 315r 2014-03-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SOLEIL BEAMLINE PROXIMA 2 0.976 SOLEIL PROXIMA 2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) 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 5.97 200 98.2 0.07 0.083 0.044 10.2 3.4 12628 12628
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Rpim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 5.97 6.3 96.3 0.8 0.822 0.519 0.9 3.3 1790
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE KtrB from 4J7C and KtrA-deltaC from 2HMS 5.97 200 12628 2316 96.7 0.325 0.338 0.339 0.3369 Random selection 342.9982
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] -142.742 -25.032 58.294 84.448
RMS Deviations Key Refinement Restraint Deviation c_angle_d 0.808 c_bond_d 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 21476 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 4
Software Software Software Name Purpose SCALA data scaling PDB_EXTRACT data extraction CNS refinement PHASER phasing XDS data reduction