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Tetrameric Complex of full-length HIV-1 integrase protein bound to the integrase binding domain of LEDGF/p75
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB
Sample Full-length tetrameric HIV-1 integrase bound to LEDGF IBD
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details Cryo-EM grids were prepared by freezing using a manual plunger in cold room at 4C
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 102050 Reported Resolution (Å) 4.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 (1ITG, 1IHV, 1WJA, 3HPH) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Correlation coefficient Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 26.5
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 500 Maximum Defocus (nm) 2500 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 45000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION Leginon CTF CORRECTION cryoSPARC 4.7 MODEL FITTING Coot MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX INITIAL EULER ASSIGNMENT cryoSPARC 4.7 FINAL EULER ASSIGNMENT cryoSPARC 4.7 RECONSTRUCTION cryoSPARC 4.7
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION