6N1T

Toxoplasma gondii TS-DHFR in complex with selective inhibitor 3


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP4.6293Compound 3, NADPH, PDDF, and dUMP were combined with protein and then mixed with 0.2M diammonium citrate pH 4.6 and 15% PEG3350
Crystal Properties
Matthews coefficientSolvent content
2.652.77

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.209α = 90
b = 144.343β = 90
c = 174.189γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152016-09-26MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL17U0.979282SSRFBL17U

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)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
13.55062.70.1380.1530.065124.711564
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)
13.53.6366.20.1380.5850.2550.9384.4

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 REPLACEMENTTHROUGHOUT4EIL3.5501094955662.060.20150.19830.2644RANDOM50.492
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]
-0.99-0.31.29
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.711
r_dihedral_angle_3_deg17.987
r_dihedral_angle_4_deg16.097
r_dihedral_angle_1_deg5.558
r_angle_refined_deg1.118
r_chiral_restr0.066
r_bond_refined_d0.008
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8172
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms262

Software

Software
Software NamePurpose
HKL-2000data scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction