3S9U

Bacillus anthracis Dihydrofolate Reductase bound to propargyl-linked TMP analog, UCP120J


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP300initial hits were grown at room temperature by hanging drop diffusion in 21.0% (w/v) PEG 10,000, 0.1 M MES, pH 6.75, at an equal ratio of protein to crystallization solution. Microseeding was used to obtain isolated crystals in 11% PEG 10,000 and 0.1 MES, pH 6.75 at a protein concentration of 8 mg/mL, VAPOR DIFFUSION, HANGING DROP, temperature 300K
Crystal Properties
Matthews coefficientSolvent content
2.6152.96

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.187α = 90
b = 78.187β = 90
c = 67.094γ = 90
Symmetry
Space GroupP 42

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray77.2CCDADSC QUANTUM 3152008-08-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X29A0.979505NSLSX29A

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
11.930.8399.90.0730.07325.67.4303643036455
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.91.9599.90.3970.3973.56.52228

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 3E0B1.930.83309630364161999.940.223110.191610.189980.22311RANDOM20.748
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
r_dihedral_angle_2_deg33.594
r_dihedral_angle_3_deg11.913
r_dihedral_angle_4_deg10.003
r_dihedral_angle_1_deg5.526
r_scangle_it1.873
r_angle_refined_deg1.131
r_scbond_it1.085
r_mcangle_it0.94
r_mcbond_it0.496
r_chiral_restr0.076
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.594
r_dihedral_angle_3_deg11.913
r_dihedral_angle_4_deg10.003
r_dihedral_angle_1_deg5.526
r_scangle_it1.873
r_angle_refined_deg1.131
r_scbond_it1.085
r_mcangle_it0.94
r_mcbond_it0.496
r_chiral_restr0.076
r_bond_refined_d0.007
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2760
Nucleic Acid Atoms
Solvent Atoms284
Heterogen Atoms150

Software

Software
Software NamePurpose
CBASSdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling