4FP5

Heat-labile enterotoxin ILT-IIbB5 S74A mutant


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.5287100 mM Bis-Tris propane, pH8.5, 20% PEG3350 and 200 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 287K
Crystal Properties
Matthews coefficientSolvent content
2.3948.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.41α = 90
b = 67.585β = 90
c = 155.554γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray113CCDMARMOSAIC 325 mm CCDmirrors2011-04-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-20.975SSRLBL9-2

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
11.448.4198.80.0650.02914.16.1101201960762232.8
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)
11.41.481000.330.154.2814547

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1Q5B1.441.14229607696076505299.780.1960.18640.185110.21086RANDOM15.1
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]
0.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.742
r_dihedral_angle_4_deg18.52
r_dihedral_angle_3_deg12.773
r_dihedral_angle_1_deg6.353
r_angle_refined_deg2.447
r_chiral_restr0.149
r_bond_refined_d0.029
r_gen_planes_refined0.014
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3695
Nucleic Acid Atoms
Solvent Atoms409
Heterogen Atoms5

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
SCALAdata scaling