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Tail of empty GTA particle computed with helical refinement, C6 symmetry
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.556 f_angle_d 1.174 f_chiral_restr 0.08 f_plane_restr 0.006 f_bond_d
Sample Rhodobacter capsulatus DE442 gene transfer agent tail tube
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 49821 Reported Resolution (Å) 3.78 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C6 Axial Rise 38.4 Angular Rotation 24.4
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 42.75
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) -1000 Maximum Defocus (nm) -3000 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 75000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 2.1 IMAGE ACQUISITION EPU 2.1 CTF CORRECTION RELION 2.1 MODEL FITTING Coot 0.9 INITIAL EULER ASSIGNMENT RELION 2.1 FINAL EULER ASSIGNMENT RELION 3.1 CLASSIFICATION RELION 2.1 RECONSTRUCTION RELION 2.1 MODEL REFINEMENT PHENIX 1.16
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 49821