6ORP

Modified BG505 SOSIP-based immunogen RC1 in complex with the elicited V3-glycan patch antibody Ab897NHP


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d8.7282
f_angle_d1.1171
f_chiral_restr0.0735
f_bond_d0.0076
f_plane_restr0.0067
Sample
Complex of RC1 variant of BG505 SOSIP.664 trimer with three Ab897NHP Fabs and three 8ANC195 Fabs
Sample Components
RC1 variant of BG505 SOSIP.664 trimer
Ab897NHP Fab
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 Particles158954
Reported Resolution (Å)4.4
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC3
Map-Model Fitting and Refinement
Id1 (5T3Z, 5T3Z, 4FQQ, 4FQQ)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement TargetCorrelation coefficient
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)800
Maximum Defocus (nm)2500
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 CORRECTIONGctf1.06
MODEL FITTINGUCSF Chimera
INITIAL EULER ASSIGNMENTcryoSPARC2.1
FINAL EULER ASSIGNMENTcryoSPARC2.1
CLASSIFICATIONcryoSPARC2.1
RECONSTRUCTIONcryoSPARC2.1
MODEL REFINEMENTPHENIX1.14
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION