6F4L

Structure of quinolinate synthase with inhibitor-derived quinolinate


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4P3X 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION9.1298PEG33500, Na2HPO4, CHES, anaerobic
Crystal Properties
Matthews coefficientSolvent content
2.3347.26

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.44α = 90
b = 49.31β = 107.21
c = 61.9γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 4M2016-12-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE MASSIF-30.96770ESRFMASSIF-3

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
12.346.9599.10.1370.1520.0640.9968.95.414259
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.32.3899.71.7751.9620.8250.3755.7

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 REPLACEMENTTHROUGHOUT4P3X2.346.951351472098.790.20290.20190.2204RANDOM55.07
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]
1.13-1.75-0.560.43
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.452
r_dihedral_angle_4_deg22.564
r_dihedral_angle_3_deg16.059
r_dihedral_angle_1_deg5.049
r_angle_refined_deg1.373
r_chiral_restr0.086
r_bond_refined_d0.011
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2379
Nucleic Acid Atoms
Solvent Atoms38
Heterogen Atoms34

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction