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Crystal structure of the extracellular domain of human GABA(B) receptor bound to the antagonist CGP54626
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 2.97 58.59
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 69.67 α = 90 b = 113.21 β = 97.11 c = 73.46 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 2011-04-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 24-ID-C 0.97918 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 2.15 100 94.3 0.042 0.042 14.8 3.2 57756 57756 30.23
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 2.15 2.19 58.9 0.393 2.1 1777
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 2.15 21.67 52813 52813 2709 86.04 0.2048 0.2048 0.2029 0.2055 0.2398 0.2398 RANDOM 39.0369
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] -0.9532 0.3872 -0.4967 1.4498
RMS Deviations Key Refinement Restraint Deviation t_dihedral_angle_d 22.5 t_torsion_other 22.5 t_omega_torsion 3.05 t_it 1.45 t_angle_deg 1.11 t_gen_planes 0.0159 t_bond_d 0.01 t_trig_c_planes 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6485 Nucleic Acid Atoms Solvent Atoms 504 Heterogen Atoms 159
Software Software Software Name Purpose SCALEPACK data scaling BUSTER-TNT refinement PDB_EXTRACT data extraction HKL-2000 data collection DENZO data reduction PHASER phasing BUSTER refinement