2C58

Torpedo californica acetylcholinesterase in complex with 20mM acetylthiocholine


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1EA5PDB ENTRY 1EA5

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1627732% PEG200, 150MM MES, PH6, 4DEG. C. THE CRYSTAL UNDERWENT 9 SUCCESSIVE SOAKINGS OF 1 HOUR PLUS 1 SOAKING OF 10 MINUTES IN 200 MICROLITER FRESH MOTHER LIQUOR SOLUTIONS, CONTAINING 20MM OF THE SUBSTRATE ACETYLTHIOCHOLINE., pH 6.00
Crystal Properties
Matthews coefficientSolvent content
3.868

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 113.35α = 90
b = 113.35β = 90
c = 138.03γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2005-02-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-2ESRFID14-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.32099.70.0522.637.1449453338.2
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.32.351000.474.437.31

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1EA52.32045953230399.90.1720.1720.21RANDOM53
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]
10.914.2510.91-21.83
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.5
c_scangle_it3.08
c_scbond_it2.1
c_mcangle_it2.07
c_angle_deg1.3
c_mcbond_it1.27
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.5
c_scangle_it3.08
c_scbond_it2.1
c_mcangle_it2.07
c_angle_deg1.3
c_mcbond_it1.27
c_bond_d0.006
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
c_improper_angle_d_na
c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4248
Nucleic Acid Atoms
Solvent Atoms817
Heterogen Atoms92

Software

Software
Software NamePurpose
CNSrefinement
XDSdata reduction
XSCALEdata scaling
CNSphasing