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Crystal structure of the extracellular domain of human GABA(B) receptor bound to the antagonist 2-hydroxysaclofen
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 58.54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.28 α = 90 b = 112.63 β = 97.79 c = 73.22 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 2.22 50 98.9 0.041 0.041 15.5 3.7 55065 55065 33.96
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 2.22 2.26 86.3 0.503 2.9 2414
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 2.22 32.5 50452 50452 2591 90.5 0.2082 0.2082 0.2068 0.2059 0.2338 0.2371 RANDOM 38.8765
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] -0.1575 0.4591 -3.049 3.2065
RMS Deviations Key Refinement Restraint Deviation t_dihedral_angle_d 23.27 t_torsion_other 23.27 t_omega_torsion 2.99 t_it 1.373 t_angle_deg 1.14 t_gen_planes 0.0156 t_bond_d 0.01 t_trig_c_planes 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6476 Nucleic Acid Atoms Solvent Atoms 444 Heterogen Atoms 150
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