3LVL

Crystal Structure of E.coli IscS-IscU complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP929516% PEG 8000, 0.2M Sodium Nitrate, 4% Glycerol, 0.1M Bicine pH 9.0, vapor diffusion, sitting drop, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.5351.4

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 77.647α = 90
b = 77.647β = 90
c = 355.986γ = 120
Symmetry
Space GroupP 61 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2009-07-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONOTHER0.9793

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
135083.40.09312.116.611488
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)
33.1136.50.2856486

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 1P3W and 2Z7E344.4891.341147255583.820.2270.2250.26965.786
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]
17.55617.556-35.111
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d17.242
f_angle_d0.654
f_chiral_restr0.047
f_bond_d0.004
f_plane_restr0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3938
Nucleic Acid Atoms
Solvent Atoms13
Heterogen Atoms15

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing