6SKK

Structure of the native full-length HIV-1 capsid protein in helical assembly (-13,8)


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d7.636
f_angle_d0.466
f_chiral_restr0.039
f_plane_restr0.004
f_bond_d0.002
Sample
In vitro assembled HIV-1 capsid in tubular assembly
Specimen Preparation
Sample Aggregation StateHELICAL ARRAY
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodHELICAL
Number of Particles207264
Reported Resolution (Å)3.6
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypeHELICAL
Axial SymmetryC1
Axial Rise7.11
Angular Rotation138.14
Map-Model Fitting and Refinement
Id1 (4XFX)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement TargetCross-correlation coefficient
Overall B Value72.14
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)40
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 CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONRELION2.0; 3.0
MODEL FITTINGCoot
INITIAL EULER ASSIGNMENTRELION2.0; 3.0
FINAL EULER ASSIGNMENTRELION2.0; 3.0
CLASSIFICATIONRELION
RECONSTRUCTIONRELION2.0; 3.0
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION