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Crystal structure of GluR5 ligand-binding core in complex with potassium at 1.78 Angstrom resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3C31 PDB entry 3C31
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 293 20% PEG 4000, 125 mM KCl, 175 mM K2(SO4), 100 mM K cacodylate, 4 mM Kainic acid, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.51 50.93
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 70.742 α = 90 b = 70.742 β = 90 c = 234.46 γ = 90
Symmetry Space Group P 41 21 2
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 300 mm CCD 2007-11-14 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 1.00000 APS 22-ID
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 1.72 30 98.2 0.061 16.4 7.3 64352 64352 19.87
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 1.72 1.78 97.1 0.32 7.9 7.2
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 FOURIER SYNTHESIS THROUGHOUT PDB entry 3C31 1.72 29.31 59922 59922 3208 98.28 0.16679 0.16679 0.16527 0.1662 0.19444 0.1957 RANDOM 16.962
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] 0.69 0.69 -1.38
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.456 r_dihedral_angle_4_deg 19.137 r_dihedral_angle_3_deg 14.928 r_dihedral_angle_1_deg 5.916 r_scangle_it 4.765 r_scbond_it 2.922 r_mcangle_it 1.767 r_angle_refined_deg 1.653 r_mcbond_it 0.96 r_chiral_restr 0.132
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.456 r_dihedral_angle_4_deg 19.137 r_dihedral_angle_3_deg 14.928 r_dihedral_angle_1_deg 5.916 r_scangle_it 4.765 r_scbond_it 2.922 r_mcangle_it 1.767 r_angle_refined_deg 1.653 r_mcbond_it 0.96 r_chiral_restr 0.132 r_bond_refined_d 0.017 r_gen_planes_refined 0.009 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4048 Nucleic Acid Atoms Solvent Atoms 553 Heterogen Atoms 61
Software Software Software Name Purpose REFMAC refinement HKL-2000 data collection HKL-2000 data reduction HKL-2000 data scaling