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Crystal structure of the extracellular domain of human GABA(B) receptor bound to the antagonist CGP46381
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4MQE PDB ENTRY 4MQE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 277 10% PEG3350, 20% glycerol, 0.12 M sodium acetate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.99 58.92
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.87 α = 90 b = 112.87 β = 97.85 c = 73.14 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 ADSC QUANTUM 315 2011-08-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-C 0.97949 APS 24-ID-C
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 2.25 60.969 96.3 0.037 0.037 17.5 3.8 52020 52020 61.76
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.25 2.37 82.2 0.537 0.537 1.4 3.7 6443
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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 THROUGHOUT PDB ENTRY 4MQE 2.25 32.94 52005 52005 2625 96.16 0.2032 0.2032 0.2019 0.2061 0.2284 0.233 RANDOM 63.4897
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] 0.635 3.3441 -10.1558 9.5208
RMS Deviations Key Refinement Restraint Deviation t_dihedral_angle_d 18.26 t_torsion_other 18.26 t_omega_torsion 2.76 t_it 1.249 t_angle_deg 1.09 t_gen_planes 0.014 t_bond_d 0.01 t_trig_c_planes 0.0065
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6485 Nucleic Acid Atoms Solvent Atoms 320 Heterogen Atoms 116
Software Software Software Name Purpose SCALA data scaling BUSTER-TNT refinement PDB_EXTRACT data extraction XDS data scaling XDS data reduction PHASER phasing BUSTER refinement