7URN

Structure of HIV-1 capsid declination


ELECTRON MICROSCOPY
Sample
Capsid-like particles of in vitro assembled HIV-1 CA protein
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentHOMEMADE PLUNGER
Cryogen NameETHANE
Sample Vitrification DetailsManual plunge-freezing
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles525219
Reported Resolution (Å)3.43
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC5
Map-Model Fitting and Refinement
Id1 (4XFX)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value
Fitting Procedure
DetailsThe following protein chains were refined separately in real space using Phenix: A (pentamer); L, M and N (half-hexamer). Chain M was then rigid-body ...The following protein chains were refined separately in real space using Phenix: A (pentamer); L, M and N (half-hexamer). Chain M was then rigid-body fit to generate chains O, P and Q to complete the hexamer. Chains O, P and Q are deposited as polyALA models.
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
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
MODEL FITTINGPHENIX
INITIAL EULER ASSIGNMENTcryoSPARC
RECONSTRUCTIONcryoSPARCv3.3.1
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION