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X-ray structure of the GluR6 ligand binding core (S1S2A) in complex with glutamate at 1.65 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1S7Y 1S7Y (rcsb021380)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 293 24% PEG 4000 2 TRIS 20 NaCl 1 EDTA 10 NaGlu , pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.31 46.31
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 52.272 α = 90 b = 52.272 β = 90 c = 169.411 γ = 120
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 4 2003-07-27 M Single Wavelength 0.97946
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X9B NSLS X9B
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 1.65 30 99.6 0.06 13.1 3.6 31388 31253 2 2 19.41
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) 1.65 1.71 99.9 0.355 3.82 3.5 3122
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 1S7Y (rcsb021380) 1.65 27.13 2 31253 31251 1552 99.4 0.2018 0.2013 0.1997 0.1995 0.2299 0.2297 random 20.7
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] 0.84 0.84 -1.67 0.89
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.3 c_angle_deg 1.2 c_improper_angle_d 0.78 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2057 Nucleic Acid Atoms Solvent Atoms 359 Heterogen Atoms 10
Software Software Software Name Purpose HKL-2000 data collection SCALEPACK data scaling AMoRE phasing CNS refinement HKL-2000 data reduction