3N0H

hDHFR double mutant Q35S/N64F Trimethoprim Binary Complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.9298100 mM K2HPO4, 60% AmSulfate, 3% ETOH, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthew coefficientSolvent content
2.550.76

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.016α = 90
b = 84.016β = 90
c = 78.495γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray200IMAGE PLATERIGAKU RAXIS IVMaxFlux2009-07-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU3001.54118

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
11.934.5498.10.080.0812.62.639906153812217.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.9297.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)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 1u721.9234.51153811461576697.970.200440.197810.25104RANDOM17.85
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_deg34.132
r_dihedral_angle_3_deg16.522
r_dihedral_angle_4_deg11.65
r_dihedral_angle_1_deg6.742
r_scangle_it4.939
r_scbond_it3.369
r_angle_refined_deg2.116
r_mcangle_it2.064
r_mcbond_it1.192
r_chiral_restr0.269
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.132
r_dihedral_angle_3_deg16.522
r_dihedral_angle_4_deg11.65
r_dihedral_angle_1_deg6.742
r_scangle_it4.939
r_scbond_it3.369
r_angle_refined_deg2.116
r_mcangle_it2.064
r_mcbond_it1.192
r_chiral_restr0.269
r_bond_refined_d0.024
r_gen_planes_refined0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1502
Nucleic Acid Atoms
Solvent Atoms91
Heterogen Atoms57

Software

Software
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling