3GHW

Human dihydrofolate reductase inhibitor complex


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.9298100 mM KPO4, pH 6.9, 30% AmSO4, 3& v/v ethanol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.5251.21

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.65α = 90
b = 84.65β = 90
c = 78.058γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray200CCDMARMOSAIC 325 mm CCDMIRRORS2008-12-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-2SSRLBL9-2

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
11.0342.3382.70.1140.0369.959523112.24
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)
1.031.090.0420.0230.324.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)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 1U721.2422.172563655653529861000.1810.180.204RANDOM18.35
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]
-0.01-0.010.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.754
r_dihedral_angle_3_deg13.779
r_dihedral_angle_4_deg12.556
r_dihedral_angle_1_deg6.36
r_scangle_it4.822
r_scbond_it3.386
r_angle_refined_deg2.659
r_mcangle_it2.396
r_mcbond_it1.373
r_chiral_restr0.357
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.754
r_dihedral_angle_3_deg13.779
r_dihedral_angle_4_deg12.556
r_dihedral_angle_1_deg6.36
r_scangle_it4.822
r_scbond_it3.386
r_angle_refined_deg2.659
r_mcangle_it2.396
r_mcbond_it1.373
r_chiral_restr0.357
r_bond_refined_d0.032
r_gen_planes_refined0.018
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1502
Nucleic Acid Atoms
Solvent Atoms327
Heterogen Atoms84

Software

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