5G64

The complex between human IgE-Fc and two anti-IgE Fab fragments


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2WQRPDB ENTRIES 2WQR AND UNPUBLISHED FAB STRUCTURE

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14% PEG 8000 AND 0.03M SODIUM FLUORIDE. CRYSTALS WERE CRYOPROTECTED WITH 4M TMAO
Crystal Properties
Matthews coefficientSolvent content
3.2262

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 76.64α = 90
b = 231.19β = 90
c = 247.12γ = 90
Symmetry
Space GroupI 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELPILATUS2012-02-11MSINGLE WAVELENGTH
21x-ray100PIXELPILATUSMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I020.976DiamondI02
2SYNCHROTRONDIAMOND BEAMLINE I030.976DiamondI03

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
13.7115.5999.90.1517.93823989115.86
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.7499.91.938.4

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRIES 2WQR AND UNPUBLISHED FAB STRUCTURE3.715115.5951.3620087100784.720.26140.25880.3092
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d9.127
f_angle_d0.451
f_chiral_restr0.039
f_plane_restr0.004
f_bond_d0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10783
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms122

Software

Software
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHASERphasing
MOLREPphasing
PHENIXrefinement