8ULR | pdb_00008ulr

Cryo-EM structure of the BG505 SOSIPv2 in complex with bNAb 05_B08 Fabs


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6UDJ 
experimental modelPDB 8UKI 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d4.6286
f_angle_d0.5291
f_chiral_restr0.0428
f_plane_restr0.0047
f_bond_d0.0039
Sample
Antibody-antigen complex of HIV-1 BG505 SOSIPv2 trimer with 05_B08 Fabs
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details3s blot, 0 blot force
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles129686
Reported Resolution (Å)3.3
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC3
Map-Model Fitting and Refinement
Id1 (6UDJ, 8UKI)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)60
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification105000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONTopaz
IMAGE ACQUISITIONSerialEM4.1.0beta
CTF CORRECTIONcryoSPARC
MODEL FITTINGUCSF ChimeraX
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTcryoSPARC
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION