4B53

Crystal structure of the isolated IgG4 CH3 domain


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP291SITTING DROP AT 291K. RESERVOIR OF 100 MICROLITRE 22% PEG 3350 AND 150MM CALCIUM ACETATE. DROP SIZE 100 NANOLITRE PROTEIN AND 100 NANOLITRE RESERVOIR. PROTEIN CONCENTRATION OF 1.5MG/ML
Crystal Properties
Matthews coefficientSolvent content
2.3447.38

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.09α = 90
b = 57.09β = 90
c = 138.436γ = 90
Symmetry
Space GroupP 43 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152010-03-06MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I04DiamondI04

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
11.827.9699.90.0825.827.12210224.8
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)
11.81.8599.90.764.726.3

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 ENTRY 1ADQ1.827.9571.3421991109999.680.18510.18260.2368
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]
6.91566.9156-8.1011
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.933
f_angle_d1.083
f_chiral_restr0.074
f_bond_d0.006
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1640
Nucleic Acid Atoms
Solvent Atoms195
Heterogen Atoms59

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
MOLREPphasing