2XI4

Torpedo californica Acetylcholinesterase in Complex with Aflatoxin B1 (Orthorhombic Space Group)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1W75PDB ENTRY 1W75

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
15.8277ACHE WAS CRYSTALLIZED IN 34% PEG200, 150 MM MES, PH 6, 4 DEG. C. THE CRYSTAL WAS SOAKED FOR 15 H IN 100 MICROMOLAR AFLATOXIN B1, 10% ETOH, 36% PEG200, 150MM MES, PH 5.8, 4 DEG C.
Crystal Properties
Matthews coefficientSolvent content
3.160.2

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 91.73α = 90
b = 107.03β = 90
c = 150.73γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2007-09-10MSINGLE 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
12.346.2298.10.0623.076.0565334-338.486
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)
12.32.351000.424.575.94

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 1W752.346.226217731561000.182440.179880.23366RANDOM37.284
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]
-1.423.85-2.43
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.086
r_dihedral_angle_4_deg17.754
r_dihedral_angle_3_deg15.569
r_dihedral_angle_1_deg6.435
r_scangle_it3.439
r_scbond_it2.199
r_angle_refined_deg1.491
r_mcangle_it1.225
r_mcbond_it0.664
r_chiral_restr0.104
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.086
r_dihedral_angle_4_deg17.754
r_dihedral_angle_3_deg15.569
r_dihedral_angle_1_deg6.435
r_scangle_it3.439
r_scbond_it2.199
r_angle_refined_deg1.491
r_mcangle_it1.225
r_mcbond_it0.664
r_chiral_restr0.104
r_bond_refined_d0.014
r_gen_planes_refined0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8450
Nucleic Acid Atoms
Solvent Atoms744
Heterogen Atoms183

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
REFMACphasing