8CLH

Drug cocktail (Colchicine, Epothilone A, Peloruside, Ansamitocin P3, Vinblastine) bound to tubulin (T2R-TTL) complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4O2B 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1SMALL TUBES6.52936% PEG4000 (w/v), 30 mM MgCl2, 30 mM CaCl2, 0.1 M MES/Imidazole, 5 mM L-tyrosine
Crystal Properties
Matthews coefficientSolvent content
3.1661.06

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 107α = 90
b = 160.34β = 90
c = 181.92γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293PIXELPSI JUNGFRAU 16M2020-02-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1FREE ELECTRON LASERSwissFEL ARAMIS BEAMLINE ESA1.03SwissFEL ARAMISESA

Serial Crystallography

Sample delivery method
Diffraction IDDescriptionSample Delivery Method
1injection
Injection
Diffraction IDDescriptionFlow RateInjector DiameterInjection PowerInjector NozzleFilter SizeCarrier Solvent
1High-viscosity injectionHydroxyethylcellulose

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)CC (Half)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
12.415.291000.986.15350.9121575
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.42.50.3210.77

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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-VALUE2.515.291.33108000118299.910.18540.18490.239
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_d17.932
f_angle_d1.087
f_chiral_restr0.058
f_plane_restr0.005
f_bond_d0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms17316
Nucleic Acid Atoms
Solvent Atoms126
Heterogen Atoms395

Software

Software
Software NamePurpose
PHENIXrefinement
CrystFELdata reduction
CrystFELdata scaling
PHENIXphasing