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Structure of the native full-length HIV-1 capsid protein in helical assembly (-13,8)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4XFX
Sample In vitro assembled HIV-1 capsid in tubular assembly
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 207264 Reported Resolution (Å) 4.5 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 7.11 Angular Rotation 138.14
Map-Model Fitting and Refinement Id 1 (4XFX) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Cross-correlation coefficient Overall B Value 72.14 Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION SerialEM CTF CORRECTION RELION 2.0; 3.0 MODEL FITTING Coot MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT RELION 2.0; 3.0 FINAL EULER ASSIGNMENT RELION 2.0; 3.0 CLASSIFICATION RELION RECONSTRUCTION RELION 2.0; 3.0
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION