3SQY

S. aureus Dihydrofolate Reductase complexed with novel 7-aryl-2,4-diaminoquinazolines


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.2298PEG 8000, Mg acetate, MPD, ADA buffer, pH 6.2, vapor diffusion, hanging drop, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.5451.55

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.393α = 90
b = 79.393β = 90
c = 107.979γ = 120
Symmetry
Space GroupP 61 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAR scanner 345 mm plateSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.54

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.531.9832732

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT1.531.9832732166199.920.19320.19280.2008RANDOM19.942
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]
0.050.020.05-0.07
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.839
r_dihedral_angle_3_deg11.817
r_dihedral_angle_4_deg9.846
r_dihedral_angle_1_deg6.208
r_scangle_it2.285
r_scbond_it1.499
r_angle_refined_deg1.353
r_mcangle_it1.005
r_mcbond_it0.672
r_nbtor_refined0.31
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.839
r_dihedral_angle_3_deg11.817
r_dihedral_angle_4_deg9.846
r_dihedral_angle_1_deg6.208
r_scangle_it2.285
r_scbond_it1.499
r_angle_refined_deg1.353
r_mcangle_it1.005
r_mcbond_it0.672
r_nbtor_refined0.31
r_symmetry_vdw_refined0.278
r_nbd_refined0.191
r_symmetry_hbond_refined0.153
r_xyhbond_nbd_refined0.084
r_chiral_restr0.082
r_bond_refined_d0.008
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1272
Nucleic Acid Atoms
Solvent Atoms107
Heterogen Atoms68

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction