3FXI

Crystal structure of the human TLR4-human MD-2-E.coli LPS Ra complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2Z65PDB ENTRY 2Z65, 2Z66
experimental modelPDB 2Z66PDB ENTRY 2Z65, 2Z66

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.527850mM MgCl2, 0.1M Na-HEPES pH 7.5, 30% PEG MME 550, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Crystal Properties
Matthews coefficientSolvent content
3.5164.91

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 91.16α = 90
b = 103.5β = 90
c = 251.81γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2008-09-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID23-20.8726ESRFID23-2

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
13.147.8794.10.1010.10113.594.9441744158691.7
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)
13.13.486.50.4813.885

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-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2Z65, 2Z663.147.874417441542206894.10.2410.2410.281RANDOM82.2
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]
9.7213.24-22.96
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d25.7
c_angle_deg1.6
c_improper_angle_d0.79
c_bond_d0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms11872
Nucleic Acid Atoms
Solvent Atoms2
Heterogen Atoms626

Software

Software
Software NamePurpose
CNSrefinement
PDB_EXTRACTdata extraction
DNAdata collection
XDSdata reduction
XDSdata scaling
PHASERphasing