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Crystal structure of the ATP-gated P2X4 ion channel in the closed, apo state at 3.5 Angstroms (R3)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 4.4 277 12 % PEG 4,000, 100 mM sodium acetate, 100 mM ammonium sulfate, 1 mM GdCl3, pH 4.4, vapor diffusion, temperature 277K
Crystal Properties Matthews coefficient Solvent content 6.1 79.82
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 234.91 α = 90 b = 234.91 β = 90 c = 138.433 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 2008-01-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 5.0.2 1.0000 ALS 5.0.2
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 3.46 50 0.053 18.1 5 43062
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 3.46 3.52 0.791 1.4 5
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION SAD 3.46 47.74 0.11 32647 1571 87.84 0.277 0.276 0.2818 0.289 0.2709 125.9
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] 10.414 10.414 -20.828
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 21.6 f_angle_d 1.272 f_chiral_restr 0.084 f_bond_d 0.007 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 7101 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 196
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling PHENIX refinement PDB_EXTRACT data extraction HKL-2000 data scaling