3SRQ

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
2.550.89

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 79.143α = 90
b = 79.143β = 90
c = 107.19γ = 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
11.6915.9222026

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 REPLACEMENTTHROUGHOUT1.6915.9222026113395.780.17680.17520.2072RANDOM22.827
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]
-0.09-0.05-0.090.14
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.958
r_dihedral_angle_4_deg17.585
r_dihedral_angle_3_deg12.645
r_dihedral_angle_1_deg6.581
r_scangle_it3.341
r_scbond_it2.028
r_angle_refined_deg1.552
r_mcangle_it1.347
r_mcbond_it0.712
r_chiral_restr0.104
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.958
r_dihedral_angle_4_deg17.585
r_dihedral_angle_3_deg12.645
r_dihedral_angle_1_deg6.581
r_scangle_it3.341
r_scbond_it2.028
r_angle_refined_deg1.552
r_mcangle_it1.347
r_mcbond_it0.712
r_chiral_restr0.104
r_bond_refined_d0.012
r_gen_planes_refined0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1272
Nucleic Acid Atoms
Solvent Atoms179
Heterogen Atoms70

Software

Software
Software NamePurpose
MOSFLMdata reduction
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction