4MXM

Crystal structure of superantigen pfit


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP82984-8% PEG 3350, 0.1 M Tris, 0.2 M ammonium acetate, 5 mM MgCl2, 5 mM DTT, 5% isopropanol, and 5% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.7555.22

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 37.186α = 90
b = 110.998β = 100.15
c = 62.075γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4mirrors2005-02-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X4A0.97905NSLSX4A

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
11.9545.797.10.060.0630.63.6351503515011
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)
11.952.0297.10.6940.6942.53.6

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (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 DIFFRACTIONSAD1.9529.2121.3433759170193.960.24750.24640.2691
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]
-6.7946-1.9156.32050.4741
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.029
f_angle_d0.547
f_chiral_restr0.041
f_bond_d0.002
f_plane_restr0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2954
Nucleic Acid Atoms
Solvent Atoms213
Heterogen Atoms

Software

Software
Software NamePurpose
CBASSdata collection
SOLVEphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling