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STRUCTURE OF ACETYLCHOLINESTERASE (E.C. 3.1.1.7) COMPLEXED WITH N-4'-QUINOLYL-N'-9"-(1",2",3",4"-TETRAHYDROACRIDINYL)-1,8- DIAMINOOCTANE AT 2.2A 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 28-33% V/V PEG 200 0.5M MES PH 5.8 AT 4 DEG. CELSIUS; THEN SOAKED IN MOTHER LIQUOR (40% V/V PEG 200 IN 0.1 M MES BUFFER, PH 5.8) CONTAINING 1MM N-4'-QUINOLYL-N'-9"-(1",2", 3",4"-TETRAHYDROACRIDINYL)-1,8-DIAMINOOCTANE DIHYRDOCHLORIDE FOR ONE DAY.
Crystal Properties Matthews coefficient Solvent content 4.06 69.7
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 111.487 α = 90 b = 111.487 β = 90 c = 136.744 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 2000-10-15 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 2.2 30 99.7 0.049 23.1 0.35 50284 26.4
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 2.28 99.9 0.287 9.81
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 2.2 29.12 49443 2428 98.3 0.1991 0.1991 0.1864 0.2401 0.2229 RANDOM 35.2
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] 7.03 3.07 7.03 -14.04
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_scangle_it 2.994 c_scbond_it 2.153 c_angle_deg 1.9 c_mcangle_it 1.811 c_improper_angle_d 1.27 c_mcbond_it 1.233 c_bond_d 0.02 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24 c_scangle_it 2.994 c_scbond_it 2.153 c_angle_deg 1.9 c_mcangle_it 1.811 c_improper_angle_d 1.27 c_mcbond_it 1.233 c_bond_d 0.02 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 4178 Nucleic Acid Atoms Solvent Atoms 153 Heterogen Atoms 62
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALEPACK data scaling CNS phasing