3H6T

Crystal structure of the iGluR2 ligand-binding core (S1S2J-N754S) in complex with glutamate and cyclothiazide at 2.25 A resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1FTJPDB ENTRY 1FTJ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.527925 % PEG 4000, 0.3 M Zinc acetate, 0.1 M Cacodylate pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K
Crystal Properties
Matthews coefficientSolvent content
2.5251.28

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 114.486α = 90
b = 163.136β = 90
c = 47.354γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray96.5CCDMAR CCD 165 mm2005-12-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONMAX II BEAMLINE I711MAX III711

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
12.2522.8499.30.0840.0847.83.44261331.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.252.371000.3460.3461.93.4

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 1FTJ2.2522.84425762098990.1820.1820.228RANDOM29.1
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]
-3.964-0.124.084
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_scangle_it3.123
c_mcangle_it2.256
c_scbond_it2.142
c_improper_angle_d2.04
c_mcbond_it1.4
c_angle_deg1.33
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_scangle_it3.123
c_mcangle_it2.256
c_scbond_it2.142
c_improper_angle_d2.04
c_mcbond_it1.4
c_angle_deg1.33
c_bond_d0.006
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 Atoms6112
Nucleic Acid Atoms
Solvent Atoms1031
Heterogen Atoms183

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
CNSrefinement
PDB_EXTRACTdata extraction