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Crystal Structure of the Ligand Binding Domain of GluK1 in Complex with an Antagonist (S)-1-(2'-Amino-2'-carboxyethyl)-3-[(2-carboxythien-3-yl)methyl]thieno[3,4-d]pyrimidin-2,4-dione at 2.5 A Resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2F34 pdb entry 2F34
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.5 279 24.4% PEG4000, 0.3 M lithium sulfate, 0.1 M phosphate-citrate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K
Crystal Properties Matthews coefficient Solvent content 2.64 53.42
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 61.459 α = 90 b = 93.353 β = 90 c = 107.171 γ = 90
Symmetry Space Group P 21 21 21
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 2009-10-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON MAX II BEAMLINE I911-3 1.0 MAX II I911-3
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 2.5 29.3 99.8 0.094 5.6 3.7 21923
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 2.5 2.64 100 0.24 1.8 3.7
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-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT pdb entry 2F34 2.5 19.779 1.34 21844 1093 99.64 0.1817 0.1778 0.2565 0.2473
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] 0.303 -0.7341 0.4311
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 16.17 f_angle_d 1.241 f_chiral_restr 0.07 f_bond_d 0.008 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4067 Nucleic Acid Atoms Solvent Atoms 330 Heterogen Atoms 80
Software Software Software Name Purpose MAR345 data collection PHASER phasing PHENIX refinement XDS data reduction SCALA data scaling