4XKQ

Crystal structure of NikA from Staphylococcus aureus in complex with Ni(L-His)2 (co-crystallization with Ni(II) and CD medium supernatant)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4OFJ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7293.1527% PEG 3350, 0.1 M HEPES pH 7.0 - protein pre-incubated with NiCl2 and CD medium supernatant.
Crystal Properties
Matthews coefficientSolvent content
2.2845.96

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 62.5α = 90
b = 67.22β = 90
c = 116.04γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2013-02-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-41.00446ESRFID14-4

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.945.7799.40.1113.66.239047-3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.9297.70.7993.146.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE4OFJ1.945.771.3539040195199.40.1570.1550.195Random selection24.7
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.272
f_angle_d1.249
f_chiral_restr0.056
f_bond_d0.01
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3708
Nucleic Acid Atoms
Solvent Atoms365
Heterogen Atoms98

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
PHASERphasing
Cootmodel building
XSCALEdata scaling