3O29

Ligand-binding domain of GluA2 (flip) ionotropic glutamate receptor in complex with an allosteric modulator


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.527712% PEG 4000, 100mM Sodium Cacodylate pH 4.5, 50mM Lithium Sulphate, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.346.57

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 64.127α = 90
b = 88.518β = 90
c = 47.336γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR CCD 165 mm2005-07-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-30.931ESRFID14-3

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
122596.50.07116.43.417620176202227.5
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)
22.0781.70.4092.52.61467

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT2.0225163991639987894.080.173910.173910.169930.24977RANDOM27.308
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]
-1.772.09-0.33
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.722
r_dihedral_angle_4_deg18.569
r_dihedral_angle_3_deg16.527
r_dihedral_angle_1_deg6.584
r_scangle_it3.876
r_scbond_it2.46
r_angle_refined_deg1.845
r_mcangle_it1.595
r_mcbond_it1.052
r_nbtor_refined0.306
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.722
r_dihedral_angle_4_deg18.569
r_dihedral_angle_3_deg16.527
r_dihedral_angle_1_deg6.584
r_scangle_it3.876
r_scbond_it2.46
r_angle_refined_deg1.845
r_mcangle_it1.595
r_mcbond_it1.052
r_nbtor_refined0.306
r_symmetry_vdw_refined0.253
r_symmetry_hbond_refined0.239
r_nbd_refined0.221
r_xyhbond_nbd_refined0.178
r_chiral_restr0.111
r_bond_refined_d0.018
r_gen_planes_refined0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2042
Nucleic Acid Atoms
Solvent Atoms251
Heterogen Atoms78

Software

Software
Software NamePurpose
HKL-2000data collection
AMoREphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling