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HIV-1 bNAb 1-55 in complex with modified BG505 SOSIP-based immunogen RC1 and 10-1074
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6MTJ experimental model PDB 5T3Z experimental model PDB 4RWY
Sample Complex of three bNAb 1-55 Fabs and three 10-1074 Fabs bound to RC1 variant of BG505 SOSIP.664 trimer Sample Components 10-1074 Fab 1-55 Fab RC1 variant of HIV-1 BG505 SOSIP.664
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 0 blot force, 3.5 second blot time, 3 uL sample added to freshly glow-discharged grids
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 110126 Reported Resolution (Å) 3.9 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C3
Map-Model Fitting and Refinement Id 1 (6MTJ, 5T3Z, 5T3Z, 5T3Z, 4RWY, 4RWY) Refinement Space Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 1000 Maximum Defocus (nm) 3400 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 73000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU CTF CORRECTION Gctf MODEL FITTING UCSF Chimera INITIAL EULER ASSIGNMENT RELION FINAL EULER ASSIGNMENT RELION CLASSIFICATION RELION RECONSTRUCTION RELION MODEL REFINEMENT PHENIX MODEL REFINEMENT Coot
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION