4YZ7

Crystal structure of Piratoxin I (PrTX-I) complexed to aristolochic acid


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.1291PEG 4000, Tris HCl pH 8.1 and lithium sulfate
Crystal Properties
Matthews coefficientSolvent content
1.9436.59

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 68.317α = 90
b = 70.931β = 90
c = 44.048γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR CCD 165 mm2012-04-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONLNLS BEAMLINE W01B-MX21.437LNLSW01B-MX2

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
11.9525.6199.220.0635.29315848

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE3CYL1.958925.610.21584278699.190.17620.1730.2352
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
f_dihedral_angle_d12.242
f_angle_d1.138
f_chiral_restr0.072
f_bond_d0.007
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1749
Nucleic Acid Atoms
Solvent Atoms174
Heterogen Atoms60

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
HKL-2000data reduction