1VXR

O-ETHYLMETHYLPHOSPHONYLATED ACETYLCHOLINESTERASE OBTAINED BY REACTION WITH O-ETHYL-S-[2-[BIS(1-METHYLETHYL)AMINO]ETHYL] METHYLPHOSPHONOTHIOATE (VX)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2ACE 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1627735-40% (W/V) PEG-200 0.15 M MES BUFFER PH 6, 0.05 M NACL, pH 6.00, temperature 277.00K
Crystal Properties
Matthews coefficientSolvent content
3.868

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 112.836α = 90
b = 112.836β = 90
c = 137.36γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHMIRRORS1998-08-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONELETTRA BEAMLINE 5.2RELETTRA5.2R

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
12.23092.30.0612.78.24784030.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.2883.90.321.6

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2ACE2.23043083215489.90.1890.23RANDOM38.5
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]
74.757-13.9
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24
c_angle_deg2
c_scangle_it1.48
c_improper_angle_d1.32
c_mcangle_it1.08
c_scbond_it0.93
c_mcbond_it0.61
c_bond_d0.023
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24
c_angle_deg2
c_scangle_it1.48
c_improper_angle_d1.32
c_mcangle_it1.08
c_scbond_it0.93
c_mcbond_it0.61
c_bond_d0.023
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 AtomsNumber
Protein Atoms4244
Nucleic Acid Atoms
Solvent Atoms339
Heterogen Atoms72

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing