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SIVtal integrase in complex with RNA stem-loop (focused refinement of the filament repeat unit)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.102 f_angle_d 0.431 f_chiral_restr 0.037 f_plane_restr 0.003 f_bond_d 0.002
Sample Linear Polymer Assembly of SIV Integrase Octamers with RNA Stem-loop (local refinement).
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE-PROPANE Sample Vitrification Details Embedding Material vitreous ice Embedding Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 53737 Reported Resolution (Å) 3.3 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 41
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 4000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION crYOLO PARTICLE SELECTION Topaz PARTICLE SELECTION Gautomatch IMAGE ACQUISITION EPU MODEL FITTING UCSF Chimera INITIAL EULER ASSIGNMENT cryoSPARC 4.5.3 FINAL EULER ASSIGNMENT cryoSPARC 4.5.3 CLASSIFICATION cryoSPARC 4.5.3 RECONSTRUCTION cryoSPARC 4.5.3 MODEL REFINEMENT PHENIX 1.21.2_5419
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION