5U75

The structure of Staphylococcal Enterotoxin-like X (SElX), a Unique Superantigen


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.5296SEIX (10 mg/ml), SLeX (5 mM), PEG 3350 (24%), Tri-Lithium citrate (250 mM)
Crystal Properties
Matthews coefficientSolvent content
3.3763.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 92.141α = 90
b = 92.141β = 90
c = 53.418γ = 120
Symmetry
Space GroupP 65

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray110IMAGE PLATEMAR scanner 345 mm plateosmic mirrors2013-07-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF1.54180

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)CC (Half)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
11.6618.8594.40.1510.1510.999515.62874517.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.661.7587.61.9420.5220.414.9

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 REPLACEMENTTHROUGHOUT4DXG1.661827279145694.450.18660.18510.2143RANDOM21.542
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]
-0.27-0.13-0.270.86
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.403
r_dihedral_angle_4_deg20.472
r_dihedral_angle_3_deg10.729
r_dihedral_angle_1_deg6.459
r_mcangle_it1.764
r_angle_refined_deg1.385
r_mcbond_it1.142
r_mcbond_other1.135
r_angle_other_deg0.887
r_chiral_restr0.076
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.403
r_dihedral_angle_4_deg20.472
r_dihedral_angle_3_deg10.729
r_dihedral_angle_1_deg6.459
r_mcangle_it1.764
r_angle_refined_deg1.385
r_mcbond_it1.142
r_mcbond_other1.135
r_angle_other_deg0.887
r_chiral_restr0.076
r_bond_refined_d0.009
r_gen_planes_refined0.005
r_bond_other_d0.002
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1147
Nucleic Acid Atoms
Solvent Atoms147
Heterogen Atoms56

Software

Software
Software NamePurpose
XDSdata reduction
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction