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Achieving multi-isoform PI3K inhibition in a series of substituted 3,4-Dihydro-2H-benzo[1,4]oxazines
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1E8Y PDB ENTRY 1e8y
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.25 290 19% PEG 4000, 0.25M (NH4)2SO4, 0.1M TRIS PH 7.2
, pH 7.25 , VAPOR DIFFUSION, HANGING DROP, temperature 290K
Crystal Properties Matthews coefficient Solvent content 2.29 46.31
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 142.23 α = 90 b = 67.77 β = 95.96 c = 105.87 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 2008-07-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX14.2 0.979 SRS PX14.2
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) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2.85 105.409 97.4 0.091 0.091 5.4 3 68314 22970
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) Redundancy Number Unique Reflections (All) 2.85 3 98.5 0.509 0.509 1.4 3 3377
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1e8y 2.85 30 22943 2262 96.9 0.242 0.2449 0.318 0.2531 Random 62.175
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] 5.33 -6.657 -13.663 8.333
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 5.037 c_mcangle_it 3.977 c_scbond_it 3.516 c_mcbond_it 2.458 c_angle_deg 1.083 c_bond_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6861 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 18
Software Software Software Name Purpose SCALA data processing CNS refinement PDB_EXTRACT data extraction ADSC data collection MOSFLM data reduction SCALA data scaling CNS phasing CNX refinement