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Crystal structure of a prokaryotic pentameric ligand-gated ion channel, ELIC
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, SITTING DROP 6.1 277 12% PEG4000, 0.1 M MES, 0.2 M ammonium sulfate, pH 6.1, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 4.04 69.53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.289 α = 90 b = 266.97 β = 107.53 c = 111.074 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 PIXEL DECTRIS PILATUS 6M 2011-03-24 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL12-2 SSRL BL12-2
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 3.087 29.8 97.4 0.055 15 3.8 104053 2.2
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 2VL0 3.089 24.99 97441 4868 91.52 0.2106 0.2091 0.2397 0.2181 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] 16.8591 16.2266 -21.1015 4.2423
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 15.837 f_angle_d 0.971 f_chiral_restr 0.068 f_bond_d 0.006 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 25050 Nucleic Acid Atoms Solvent Atoms 49 Heterogen Atoms 209
Software Software Software Name Purpose SSRL data collection PHENIX model building PHENIX refinement XDS data reduction SCALA data scaling PHENIX phasing