6UDK

HIV-1 bNAb 1-55 in complex with modified BG505 SOSIP-based immunogen RC1 and 10-1074


ELECTRON MICROSCOPY
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 StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details0 blot force, 3.5 second blot time, 3 uL sample added to freshly glow-discharged grids
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles110126
Reported Resolution (Å)3.9
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC3
Map-Model Fitting and Refinement
Id1 (6MTJ, 5T3Z, 5T3Z, 5T3Z, 4RWY, 4RWY)
Refinement Space
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)40
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)1000
Maximum Defocus (nm)3400
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification73000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONEPU
CTF CORRECTIONGctf
MODEL FITTINGUCSF Chimera
INITIAL EULER ASSIGNMENTRELION
FINAL EULER ASSIGNMENTRELION
CLASSIFICATIONRELION
RECONSTRUCTIONRELION
MODEL REFINEMENTPHENIX
MODEL REFINEMENTCoot
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION