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crystal structure of the KcsA-Fab-TBA complex in high K+
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 VAPOR DIFFUSION 6.5 293 18-25% PEG 400, 50mM Mg(Ac)2, 50mM NaAc (pH5) or Na Cacodylate (pH6) or Hepes (PH 7), pH 6.5, VAPOR DIFFUSION, temperature 293K
Crystal Properties Matthews coefficient Solvent content 3.85 68.05
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 155.874 α = 90 b = 155.874 β = 90 c = 76.159 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 mirrors 2006-05-07 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X29A 1.1 NSLS X29A
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 1.9 30 99.2 0.058 16.7 6.5 71937 71466
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 1.9 1.97 92.8 0.413 4.1 6654
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 PDB entry 1K4C 1.9 27 71937 71348 3610 99.2 0.228 0.228 0.228 0.2195 0.245 0.2158 random 37.515
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] -4.738 -4.738 9.476
RMS Deviations Key Refinement Restraint Deviation c_angle_d 1.3 c_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4034 Nucleic Acid Atoms Solvent Atoms 178 Heterogen Atoms 62
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement PDB_EXTRACT data extraction HKL-2000 data reduction CNS phasing