6NSO

An Unexpected Intermediate in the Reaction Catalyzed by Quinolinate Synthase


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1WZU 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.62950.2 M AMMONIUM ACETATE, 0.1 M SODIUM ACETATE, PH 4.6, 30% PEG 4000, 5 MM ASP, 10 MM DHAP, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 295K
Crystal Properties
Matthews coefficientSolvent content
1.8534.92

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 47.4α = 90
b = 52.79β = 112.07
c = 55.64γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray80CCDMARMOSAIC 300 mm CCD2014-06-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 23-ID-B1APS23-ID-B

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
11.633.7794.20.0760.06310.23.431790
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)
11.61.6362.90.6671.32.3

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-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1WZU1.633.771.3531775200494.20.1860.1840.221
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_d14.277
f_angle_d1.466
f_chiral_restr0.056
f_bond_d0.007
f_plane_restr0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2383
Nucleic Acid Atoms
Solvent Atoms299
Heterogen Atoms18

Software

Software
Software NamePurpose
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
PHENIXrefinement