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Cryo-EM structure of cancer-specific PI3Kalpha mutant E545K in complex with BYL-719
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7MYN
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 6.42 f_angle_d 0.672 f_chiral_restr 0.046 f_plane_restr 0.005 f_bond_d 0.004
Sample Cryo-EM structure of PI3Kalpha mutant E545K in complex with BYL-719
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 753253 Reported Resolution (Å) 2.62 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (7MYN) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Correlation coefficient Overall B Value 101.9 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 70
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1500 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source OTHER Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL FITTING PHENIX 1.18.2-3874 MODEL REFINEMENT PHENIX 1.18.2-3874
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION