6A7C

Human dihydrofolate reductase complexed with NADPH and BT1


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP2972.7 M Ammonium sulphate, 100 mM K2HPO4, 3%(v/v) Ethanol
Crystal Properties
Matthews coefficientSolvent content
2.448.81

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 82.942α = 90
b = 82.942β = 90
c = 77.489γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR CCD 165 mm2009-12-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODEBRUKER AXS MICROSTAR1.5418

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
12.063099.67.83.6212165
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.062.13

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUT4DDR2.0626.351163659199.50.1750.17170.2427RANDOM28.022
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]
0.110.110.11-0.37
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.542
r_dihedral_angle_4_deg14.052
r_dihedral_angle_3_deg13.878
r_dihedral_angle_1_deg6.111
r_angle_refined_deg1.493
r_angle_other_deg0.831
r_chiral_restr0.086
r_bond_refined_d0.01
r_gen_planes_refined0.006
r_bond_other_d0.003
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.542
r_dihedral_angle_4_deg14.052
r_dihedral_angle_3_deg13.878
r_dihedral_angle_1_deg6.111
r_angle_refined_deg1.493
r_angle_other_deg0.831
r_chiral_restr0.086
r_bond_refined_d0.01
r_gen_planes_refined0.006
r_bond_other_d0.003
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1502
Nucleic Acid Atoms
Solvent Atoms156
Heterogen Atoms94

Software

Software
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
AUTOMARdata reduction
MOLREPphasing