3GHV

Human dihydrofolate reductase Q35K/N64F double mutant inhibitor complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1U70PDB entry 1u70

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.9298100 mM KPo4, pH 6.9, 30% AmSO4, 3% v/v ethanol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4950.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.21α = 90
b = 84.21β = 90
c = 78.03γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray200CCDMARMOSAIC 325 mm CCDmirrors2008-06-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL11-10.9422SSRLBL11-1

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
11.353.31000.0550.0197.750763481842216.3
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)
11.31.371000.1090.12111.25.27363

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1u701.353.3124818448184257799.990.160240.159040.18293RANDOM14.045
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_deg33.319
r_dihedral_angle_4_deg13.178
r_dihedral_angle_3_deg11.371
r_dihedral_angle_1_deg6.444
r_scangle_it5.15
r_scbond_it3.47
r_angle_refined_deg2.562
r_mcangle_it2.182
r_mcbond_it1.276
r_chiral_restr0.554
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.319
r_dihedral_angle_4_deg13.178
r_dihedral_angle_3_deg11.371
r_dihedral_angle_1_deg6.444
r_scangle_it5.15
r_scbond_it3.47
r_angle_refined_deg2.562
r_mcangle_it2.182
r_mcbond_it1.276
r_chiral_restr0.554
r_bond_refined_d0.029
r_gen_planes_refined0.018
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1505
Nucleic Acid Atoms
Solvent Atoms384
Heterogen Atoms116

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling