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Structure of the M3 Muscarinic Acetylcholine Receptor
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3UON M2 muscarinic acetylcholine receptor (3UON)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 293 27-38% PEG 300, 100 mM HEPES pH 7.5, 1% (w/w) 1,2,3-heptanetriol, and 100 mM ammonium phosphate. Protein was reconstituted in cubic phase using a 10:1 monolein:cholesterol mix by weight, Lipidic cubic phase, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.68 54.17
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 54.77 α = 85.87 b = 61.31 β = 89.9 c = 176.91 γ = 84.9
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 78 CCD MARMOSAIC 300 mm CCD mirrors 2011-08-14 M SINGLE WAVELENGTH 2 1 x-ray 78 CCD MARMOSAIC 300 mm CCD mirrors 2011-08-23
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 23-ID-D 1.033 APS 23-ID-D 2 SYNCHROTRON APS BEAMLINE 23-ID-D 1.033 APS 23-ID-D
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 3.4 40 90.6 0.226 4.5 3.7 28385 -3
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 3.4 3.5 85.9 0.527 1.7 2.8
Refinement Statistics Diffraction ID Structure Solution Method Starting model 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-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT M2 muscarinic acetylcholine receptor (3UON) 3.4 39.9 1.98 26013 1276 82.9 0.254 0.251 0.303 0.3064
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] -2.1698 2.0178 0.1059 6.5992 -1.3222 -4.4294
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.722 f_angle_d 0.862 f_chiral_restr 0.058 f_bond_d 0.011 f_plane_restr 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 13435 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 154
Software Software Software Name Purpose Blu-Ice data collection PHASER phasing PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling