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Structure of acetylcholinesterase (E.C. 3.1.1.7) complexed with (S,S)-(-)-bis(12)-hupyridone at 2.15A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2ACE PDB ENTRY 2ACE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.8 277 PROTEIN WAS CRYSTALLISED FROM 28-30% V/V PEG 200 0.5M MES PH 5.8 AT 4 DEG. CELSIUS; THEN SOAKED IN IN MOTHER LIQUOR (40% V/V PEG 200 IN 0.1 M MES BUFFER, PH 5.8) CONTAINING 10MM (S,S)-(-)-BIS(12)-HUPYRIDONE DIHYDROCHLORIDE FOR 2 DAYS
Crystal Properties Matthews coefficient Solvent content 4.11 69.65
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 111.794 α = 90 b = 111.794 β = 90 c = 137.775 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 120 IMAGE PLATE RIGAKU IMAGE PLATE OSMIC BLUE CONFOCAL MIRRORS 2000-09-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RUH3R
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 2.15 29.3 99.7 0.066 13.5 0.38 54602
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 2.15 2.23 99.8 0.396 9.79
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 2ACE 2.15 29.3 53657 2677 98.3 0.1893 0.1893 0.1921 0.2148 0.2177 RANDOM 34.753
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] -7.197 -0.949 -7.197 14.394
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 3.052 c_scbond_it 2.107 c_angle_deg 1.94229 c_mcangle_it 1.854 c_mcbond_it 1.232 c_bond_d 0.019531 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 3.052 c_scbond_it 2.107 c_angle_deg 1.94229 c_mcangle_it 1.854 c_mcbond_it 1.232 c_bond_d 0.019531 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 c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4184 Nucleic Acid Atoms Solvent Atoms 269 Heterogen Atoms 64
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALEPACK data scaling CNS phasing