8URJ | pdb_00008urj

Cryo-EM structure of the HIV-1 nuclear export complex


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5DIS 
experimental modelPDB 4PMI 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d8.356
f_angle_d0.758
f_chiral_restr0.053
f_plane_restr0.006
f_bond_d0.003
Sample
HIV-1 Nuclear Export complex
Sample Components
Crm1
Ran Q69L 1-180
HIV-1 Rev/RRE RNP
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsWashed grid 2x outside of vitrobot; with the second drop of buffer I loaded the tweezers; moved the grid into the chamber and then I blotted.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles260885
Reported Resolution (Å)4.25
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (5DIS, 5DIS, 4PMI, 4PMI, 4PMI)
Refinement Space
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value325
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)6668
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)800
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification105000
Calibrated Magnification59880
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION
PARTICLE SELECTIONcryoSPARC
CTF CORRECTIONcryoSPARC
CTF CORRECTIONRELION
MODEL FITTINGUCSF ChimeraX
INITIAL EULER ASSIGNMENTRELION
INITIAL EULER ASSIGNMENTcryoSPARC
FINAL EULER ASSIGNMENTRELION
RECONSTRUCTIONRELION
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION11176625