3PRE

Quinazolines with intra-molecular hydrogen bonding scaffold (iMHBS) as PI3K/mTOR dual inhibitors.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION8.22860.1M BIS-TRIS PROPANE, 0.2M (NH4)2SO4, 16-18% (W/V) PEG3350, 10% (V/V) ETHYLENE GLYCOL AND 10MM TCEP , pH 8.2, VAPOR DIFFUSION, temperature 286K
Crystal Properties
Matthews coefficientSolvent content
2.3146.77

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 143.541α = 90
b = 67.276β = 95.77
c = 106.529γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray93CCDADSC QUANTUM 2102007-05-12MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.11.00ALS5.0.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.95099.60.10911.573.6922391826431185.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.9397.10.741.083.42169

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 (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISTHROUGHOUT2.91502124821248114399.30.2350.235290.232060.29512RANDOM63.616
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]
-0.61.183.8-2.97
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.548
r_dihedral_angle_3_deg20.89
r_dihedral_angle_4_deg17.608
r_dihedral_angle_1_deg6.48
r_scangle_it2.537
r_angle_refined_deg1.513
r_scbond_it1.442
r_mcangle_it1.236
r_mcbond_it0.652
r_chiral_restr0.096
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.548
r_dihedral_angle_3_deg20.89
r_dihedral_angle_4_deg17.608
r_dihedral_angle_1_deg6.48
r_scangle_it2.537
r_angle_refined_deg1.513
r_scbond_it1.442
r_mcangle_it1.236
r_mcbond_it0.652
r_chiral_restr0.096
r_bond_refined_d0.013
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6787
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms26

Software

Software
Software NamePurpose
REFMACrefinement
CNSrefinement
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing