7KM9

Crystal Structure of Dihydrofolate reductase (DHFR) from Mycobacterium ulcerans Agy99 in complex with NADP and inhibitor SDDC-0001913, tetragonal crystal from


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6UWWNAD and P218-bound structure, PDB entry 6uww

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.5287Morpheus screen condition b1: 10% (w/V) PEG 20,000, 20% (V/V) PEG MME 550: 30mM each sodium fluoride, sodium bromide, sodium iodide: 100m MES / imidazole HCl pH 6.5: MyulA.01062.a.B13.PS38558 at 7.98mg/ml + 2.5 mM NADP and SDDC-0001913 (bsi111354): tray 318490b1: cryo: direct: puck poq5-9
Crystal Properties
Matthews coefficientSolvent content
2.9858.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.97α = 90
b = 58.97β = 90
c = 130.34γ = 90
Symmetry
Space GroupP 41 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX MX-3002020-10-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-F0.97872APS21-ID-F

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)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
11.955099.90.060.0620.99922.1211.3431756542.213
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.9521000.5610.5870.9774.1111.842

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUENAD and P218-bound structure, PDB entry 6uww1.9543.731.3717505180499.870.1850.18180.213043.22
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
f_dihedral_angle_d13.4382
f_angle_d0.8881
f_chiral_restr0.0554
f_bond_d0.0068
f_plane_restr0.0068
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1209
Nucleic Acid Atoms
Solvent Atoms119
Heterogen Atoms80

Software

Software
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHASERphasing
PHENIXmodel building
Cootmodel building