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Cryo-EM structure of the PI3K alpha/KRas/HER3 phosphopeptide complex dimer on POPC/POPS/PIP2 nanodiscs low-pass filtered to 5 angstroms
Sample full-length p85 alpha and p110 alpha heterodimer/KRas/HER3 phosphopeptide complex dimer bound to POPC/POPS/PIP2-MSP1E3D1 nanodiscs
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 280864 Reported Resolution (Å) 5 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 47.7
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 2000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.3.1 CTF CORRECTION cryoSPARC 4.3.1 MODEL FITTING UCSF ChimeraX 1.7.1 MODEL FITTING Rosetta 3.0 MODEL REFINEMENT Coot 8.0 MODEL REFINEMENT ISOLDE INITIAL EULER ASSIGNMENT cryoSPARC 4.3.1 FINAL EULER ASSIGNMENT cryoSPARC 4.3.1 RECONSTRUCTION cryoSPARC 4.3.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 6259852