3GYF

Human DHFR with Z-isomer in Orthorhombic lattice


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.9287100 mM K2HPO4, pH 6.9, 30% saturated AS, 3% v/v ethanol, VAPOR DIFFUSION, HANGING DROP, temperature 287K
Crystal Properties
Matthews coefficientSolvent content
238.55

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 39.908α = 90
b = 57.481β = 90
c = 74.975γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray200CCDMARMOSAIC 325 mm CCDmirrors2008-08-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-21.000SSRLBL9-2

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
11.445.6495.60.1090.03613.79.8189192124.6
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)
11.41.4893.10.0140.451.29.44606

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 (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1u721.731.412189191797594396.460.226490.2230.2230.28342RANDOM24.787
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_deg38.158
r_dihedral_angle_4_deg22.531
r_dihedral_angle_3_deg18.654
r_dihedral_angle_1_deg7.149
r_scangle_it4.664
r_scbond_it3.189
r_angle_refined_deg2.411
r_mcangle_it2.304
r_mcbond_it1.396
r_chiral_restr0.283
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.158
r_dihedral_angle_4_deg22.531
r_dihedral_angle_3_deg18.654
r_dihedral_angle_1_deg7.149
r_scangle_it4.664
r_scbond_it3.189
r_angle_refined_deg2.411
r_mcangle_it2.304
r_mcbond_it1.396
r_chiral_restr0.283
r_bond_refined_d0.023
r_gen_planes_refined0.014
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1502
Nucleic Acid Atoms
Solvent Atoms128
Heterogen Atoms85

Software

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