7R4Q

The SARS-CoV-2 spike in complex with the 1.29 neutralizing nanobody


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6ZXN 
experimental modelPDB 3TPK 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d10.679
f_angle_d3.238
f_chiral_restr0.427
f_plane_restr0.025
f_bond_d0.022
Sample
The trimeric SARS-CooV-2 spike in complex with the 1.29 neutralizing nanobody
Sample Components
SARS-CoV-2 spike
Nanobody 1.29
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles40000
Reported Resolution (Å)3.6
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (6ZXN, 6ZXN, 6ZXN, 3TPK, 3TPK)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Targetcorrelation coefficient
Overall B Value140
Fitting Procedure
DetailsRigid body refinement. Real space refinement including 5 macro cycles of:Minimization_global, local_grid search and adp. Refinement at 4.0A of resolut ...Rigid body refinement. Real space refinement including 5 macro cycles of:Minimization_global, local_grid search and adp. Refinement at 4.0A of resolution. Refinement included NCS.
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)30
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TALOS ARCTICA
Minimum Defocus (nm)1000
Maximum Defocus (nm)4000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeDARK FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)200
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGUCSF Chimera1.15
MODEL FITTINGCoot0.8.9.1
MODEL REFINEMENTPHENIX1.17.1_3660
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION