3NHJ

X-ray Crystallographic Structure Activity Relationship (SAR) of Casimiroin and its Analogs Bound to Human Quinone Reductase 2


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1hanging drop6.72981.339 M ammonium sulfate, 0.1 M Bis-Tris, 0.1 M NaCl, 5 mM DTT, and 12 uM FAD, pH 6.7, hanging drop, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4149.03

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 56.126α = 90
b = 83.594β = 90
c = 106.367γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298CCDMARMOSAIC 225 mm CCD2009-10-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-BM1.0APS22-BM

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.3365.895.50.09710.7521122
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.332.4197.80.42852114

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 REPLACEMENTTHROUGHOUT2.3350145821081108295.510.20030.19680.2669RANDOM38.6836
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]
2.260.24-2.5
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.857
r_dihedral_angle_4_deg20.531
r_dihedral_angle_3_deg15.817
r_dihedral_angle_1_deg7.929
r_scangle_it3.916
r_scbond_it2.563
r_mcangle_it1.897
r_angle_refined_deg1.824
r_mcbond_it1.034
r_chiral_restr0.12
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.857
r_dihedral_angle_4_deg20.531
r_dihedral_angle_3_deg15.817
r_dihedral_angle_1_deg7.929
r_scangle_it3.916
r_scbond_it2.563
r_mcangle_it1.897
r_angle_refined_deg1.824
r_mcbond_it1.034
r_chiral_restr0.12
r_bond_refined_d0.018
r_gen_planes_refined0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3648
Nucleic Acid Atoms
Solvent Atoms116
Heterogen Atoms140

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
CCP4phasing