3QG2

Plasmodium falciparum DHFR-TS qradruple mutant (N51I+C59R+S108N+I164L, V1/S) pyrimethamine complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1J3JPDB ENTRY 1J3J

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1MICROBATCH4.62970.1mM sodium acetate, 25% (w/v) PEG 4000, 0.2M ammonium acetate, pH 4.6, microbatch, temperature 297K
Crystal Properties
Matthews coefficientSolvent content
2.5251.1

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 56.486α = 90
b = 155.272β = 90
c = 164.995γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDNonius Kappa CCD2003-09-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODEENRAF-NONIUS FR5911.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.25099.10.088147401229
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)
12.22.2891.60.5426742

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1J3J2.349.3965378329499.90.1980.233RANDOM41.0859
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]
5.845.47-11.31
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_scangle_it2.9
c_mcangle_it2.52
c_scbond_it1.99
c_mcbond_it1.48
c_angle_deg1.4
c_improper_angle_d0.72
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms9058
Nucleic Acid Atoms
Solvent Atoms529
Heterogen Atoms170

Software

Software
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
DENZOdata reduction
AMoREphasing