3UM8

Wild-type Plasmodium falciparum DHFR-TS complexed with cycloguanil and NADPH


X-RAY DIFFRACTION

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
2.6553.59

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.761α = 90
b = 157.538β = 90
c = 164.509γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDNonius Kappa CCD2007-10-30MSINGLE 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
12.65098.40.0522.447286
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)
12.62.6993.20.314431

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.639.1647165236798.40.2120.258RANDOM52.5746
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]
8.031.61-9.65
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.1
c_scangle_it2.7
c_mcangle_it2.32
c_scbond_it1.81
c_angle_deg1.5
c_mcbond_it1.34
c_improper_angle_d0.82
c_bond_d0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms9044
Nucleic Acid Atoms
Solvent Atoms456
Heterogen Atoms140

Software

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