4FFK

X-ray structure of iron superoxide dismutase from Acidilobus saccharovorans


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.52850.1 M Tris, 2.0 M ammonium sulfate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 285K
Crystal Properties
Matthews coefficientSolvent content
2.2946.23

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 99.44α = 90
b = 99.44β = 90
c = 81.4γ = 120
Symmetry
Space GroupP 64 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX SX-165mmgraphite mirrors2010-04-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONKURCHATOV SNC BEAMLINE K4.40.9715KURCHATOV SNCK4.4

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
11.7686.1295.50.0030.05144.0219.6239582395824.8
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)
11.761.885.40.3050.5165.110.514514

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 REPLACEMENTTHROUGHOUTPDB ENTRY 3EVK1.7686.1222733122599.480.201690.199710.2385RANDOM30.181
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]
-0.16-0.08-0.160.23
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.319
r_dihedral_angle_4_deg21.323
r_dihedral_angle_3_deg15.637
r_dihedral_angle_1_deg7.153
r_scangle_it3.479
r_scbond_it2.461
r_angle_refined_deg1.869
r_mcangle_it1.771
r_mcbond_it1.123
r_chiral_restr0.129
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.319
r_dihedral_angle_4_deg21.323
r_dihedral_angle_3_deg15.637
r_dihedral_angle_1_deg7.153
r_scangle_it3.479
r_scbond_it2.461
r_angle_refined_deg1.869
r_mcangle_it1.771
r_mcbond_it1.123
r_chiral_restr0.129
r_bond_refined_d0.02
r_gen_planes_refined0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1707
Nucleic Acid Atoms
Solvent Atoms120
Heterogen Atoms1

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
BALBESphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling