2HRR

Crystal structure of Human Liver Carboxylesterase 1 (hCE1) in covalent complex with the nerve agent Tabun (GA)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1MX1PDB Entry: 1mx1

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.52950.1 M Citrate pH 5.5, 8-11% PEG 3350, 0.1-0.4M Lithium Sulfate, 0.1M Lithium Chloride, 0.1M Sodium Chloride, 5% Glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.957.53

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.57α = 90
b = 181.05β = 90
c = 202.92γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCD2006-02-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID1.0APS22-ID

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
12.75091.80.11721.86.4574075312728.8
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)
12.72.8791.50.2927.76.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB Entry: 1mx12.741.7857407522093705910.1670.1670.1670.232RANDOM29.2
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]
-0.91.3-0.4
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.8
c_scangle_it3.27
c_mcangle_it2.34
c_scbond_it2.1
c_mcbond_it1.36
c_angle_deg1.2
c_improper_angle_d0.84
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms12379
Nucleic Acid Atoms
Solvent Atoms827
Heterogen Atoms223

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
AMoREphasing