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CRYSTAL STRUCTURE OF THE TETRAMERIZATION DOMAIN OF THE SHAKER POTASSIUM CHANNEL
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1A68
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 24% ISOPROPANOL, .2M MGCL2, .1 M HEPES PH 7.5, 1MM DTT
Crystal Properties Matthews coefficient Solvent content 2.7 55
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 59.71 α = 90 b = 59.71 β = 90 c = 146.86 γ = 90
Symmetry Space Group I 4 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 IMAGE PLATE MARRESEARCH PT-COATED-MIRROR 1998-04-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL7-1 SSRL BL7-1
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 1.51 25 92 0.049 10.2 5.9 26768 -3 19.35
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) 1.51 1.54 93.7 0.16 3.5
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-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1A68 1.51 19.8 21355 92.1 0.229 0.249 RANDOM
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]
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 21 p_staggered_tor 15.4 p_planar_tor 3.2 p_scangle_it 2.755 p_mcangle_it 2.049 p_scbond_it 1.761 p_mcbond_it 1.354 p_multtor_nbd 0.263 p_singtor_nbd 0.177 p_xyhbond_nbd 0.138
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 21 p_staggered_tor 15.4 p_planar_tor 3.2 p_scangle_it 2.755 p_mcangle_it 2.049 p_scbond_it 1.761 p_mcbond_it 1.354 p_multtor_nbd 0.263 p_singtor_nbd 0.177 p_xyhbond_nbd 0.138 p_chiral_restr 0.126 p_planar_d 0.033 p_angle_d 0.026 p_plane_restr 0.0192 p_bond_d 0.011 p_angle_deg p_hb_or_metal_coord p_xhyhbond_nbd p_orthonormal_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 851 Nucleic Acid Atoms Solvent Atoms 108 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling X-PLOR model building REFMAC refinement X-PLOR phasing