6MID

Cryo-EM structure of the ZIKV virion in complex with Fab fragments of the potently neutralizing human monoclonal antibody ZIKV-195


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6CO8 
Sample
ZIKV virion in complex with Fab fragments of the potently neutralizing human monoclonal antibody ZIKV-195
Sample Components
Zika virus
monoclonal antibody ZIKV-195
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentGATAN CRYOPLUNGE 3
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles10687
Reported Resolution (Å)4
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsThe map was masked by removing the internal nucleic acid region and the external background region.
Refinement Type
Symmetry TypePOINT
Point SymmetryI
Map-Model Fitting and Refinement
Id1 (6CO8)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
DetailsThe occupancy of bound Fabs was low. Due to poor density, only the variable domain of Fab molecule was modeled and fit into one of the three Fab bindi ...The occupancy of bound Fabs was low. Due to poor density, only the variable domain of Fab molecule was modeled and fit into one of the three Fab binding sites on each icosahedral asymmetric unit.
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)30
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONFindEM
CTF CORRECTIONCTFFIND4
MODEL FITTINGUCSF Chimera
MODEL FITTINGEMfit
INITIAL EULER ASSIGNMENTjspr
FINAL EULER ASSIGNMENTjspr
CLASSIFICATIONRELION
RECONSTRUCTIONjspr
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE