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X-ray structure of a pentameric ligand gated ion channel from Erwinia chrysanthemi (ELIC) mutant L240A F247L (L9A F16L) in the presence of 10 mM cysteamine
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2VL0 PDB ENTRY 2VL0
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 277 10-12% PEG4000, 200 mM ammonium sulfate, 50 mM N-(2-acetamido)iminodiacetic acid (ADA), pH 6.5-6.9, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 4.13 70.22
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.57 α = 90 b = 267.43 β = 108.64 c = 111.16 γ = 90
Symmetry Space Group P 1 21 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 MARMOSAIC 225 mm CCD 2011-07-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-F 0.97872 APS 21-ID-F
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 4.2 19.988 98.7 0.179 16.58 42057 -3 103.346
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 4.2 4.31 99.4 0.829 4.17
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 2VL0 4.2 19.988 1.99 42030 2101 99.8 0.2213 0.2198 0.2001 0.2494 0.229 152.9963
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] -0.0355 1.5061 -0.6366 0.6721
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 19.298 f_angle_d 1.638 f_chiral_restr 0.115 f_bond_d 0.012 f_plane_restr 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 24990 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 1
Software Software Software Name Purpose PHENIX refinement REFMAC refinement PDB_EXTRACT data extraction XDS data reduction PHASER phasing XSCALE data scaling