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Structure of the HER2/HER3/NRG1b Heterodimer Extracellular Domain bound to Trastuzumab Fab
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3U7U experimental model PDB 1M6B experimental model PDB 1N8Z
Sample NRG1b-bound HER2/HER3 Heterodimer bound to the Trastuzumab Fab in the context of near full-length receptors Sample Components Trastuzumab (Herceptin) Fab Neuregulin-1b isoform 6 HER3 HER2-S310F-MBP Fusion
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 243376 Reported Resolution (Å) 3.45 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 (3U7U, 1M6B, 1N8Z) 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) 66
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 2.15.0 IMAGE ACQUISITION SerialEM 3.8.6 IMAGE ACQUISITION DigitalMicrograph 3.31.2359.0 CTF CORRECTION cryoSPARC 2.15.0 MODEL FITTING UCSF ChimeraX 1.0 INITIAL EULER ASSIGNMENT cryoSPARC 2.15.0 FINAL EULER ASSIGNMENT cryoSPARC 2.15.0 CLASSIFICATION RELION 3.0 RECONSTRUCTION cryoSPARC 2.15.0 MODEL REFINEMENT Rosetta 3.12 MODEL REFINEMENT ISOLDE 1.0.1 MODEL REFINEMENT PHENIX 1.18.2 MODEL REFINEMENT Coot 0.9.1
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION