5EI5

Crystal structure of MSF-aged Torpedo californica Acetylcholinesterase in complex with alkylene-linked bis-tacrine dimer (7 carbon linker)


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP277MES 100 mM, pH 6.2 PEG 200 30%
Crystal Properties
Matthews coefficientSolvent content
3.9869.13

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 111.28α = 90
b = 111.28β = 90
c = 136.74γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 2M2015-02-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONELETTRA BEAMLINE 5.2R1ELETTRA5.2R

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
12.148.2399.20.2175.4554256
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)
12.12.2199.60.3393.45

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 REPLACEMENTTHROUGHOUT1EA52.148.2354256289899.20.1750.1730.206RANDOM28.83
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]
0.870.870.87-2.81
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.895
r_dihedral_angle_4_deg19.117
r_dihedral_angle_3_deg15.105
r_long_range_B_refined8.673
r_long_range_B_other8.289
r_dihedral_angle_1_deg6.647
r_scangle_other5.71
r_scbond_it3.818
r_scbond_other3.817
r_mcangle_other3.207
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.895
r_dihedral_angle_4_deg19.117
r_dihedral_angle_3_deg15.105
r_long_range_B_refined8.673
r_long_range_B_other8.289
r_dihedral_angle_1_deg6.647
r_scangle_other5.71
r_scbond_it3.818
r_scbond_other3.817
r_mcangle_other3.207
r_mcangle_it3.205
r_mcbond_it2.447
r_mcbond_other2.429
r_angle_refined_deg2.053
r_angle_other_deg1.077
r_chiral_restr0.154
r_bond_refined_d0.02
r_gen_planes_refined0.011
r_bond_other_d0.003
r_gen_planes_other0.001
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4263
Nucleic Acid Atoms
Solvent Atoms364
Heterogen Atoms97

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing