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Conformational Flexibility in the Peripheral Site of Torpedo californica Acetylcholinesterase Revealed by the Complex Structure with a Bifunctional Inhibitor
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1EA5 PDB ENTRY 1EA5
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6 277 32% PEG200, 150MM MES, PH6.0, 4DEG. C. 12 HOURS OF SOAKING WITH A PUTATIVE ANTI-ALZHEIMER DRUG.
Crystal Properties Matthews coefficient Solvent content 3.8 68
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 111.94 α = 90 b = 111.94 β = 90 c = 137.12 γ = 120
Symmetry Space Group P 31 2 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 4 2005-02-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-2 ESRF ID14-2
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 2.2 20 99.9 0.06 16.18 4.92 50867 3 27.1
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 2.2 2.33 99.9 0.39 3.36 4.98
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) 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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1EA5 2.2 20 50867 2537 99.9 0.175 0.175 0.1846 0.206 0.218 RANDOM 43
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] 8.26 4.93 8.26 -16.52
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.4 c_scangle_it 3.03 c_scbond_it 2.07 c_mcangle_it 1.87 c_angle_deg 1.3 c_mcbond_it 1.19 c_improper_angle_d 0.86 c_bond_d 0.006 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.4 c_scangle_it 3.03 c_scbond_it 2.07 c_mcangle_it 1.87 c_angle_deg 1.3 c_mcbond_it 1.19 c_improper_angle_d 0.86 c_bond_d 0.006 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4245 Nucleic Acid Atoms Solvent Atoms 660 Heterogen Atoms 158
Software Software Software Name Purpose CNS refinement XDS data reduction XSCALE data scaling CNS phasing