☰ Navigation Tabs
Structure of T7 DNA ejectosome periplasmic tunnel
Sample Multisubunit T7 DNA ejectosome periplasmic tunnel with 6x copies of Gp15 and 6x copies of Gp16
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot for 6 seconds before plunging
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 208024 Reported Resolution (Å) 2.7 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target 0.92 Overall B Value 45.1 Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 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 81000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 3.0-b IMAGE ACQUISITION Latitude S CTF CORRECTION RELION 3.0-b MODEL FITTING UCSF Chimera 1.14 INITIAL EULER ASSIGNMENT RELION 3.0-b FINAL EULER ASSIGNMENT RELION 3.0-b CLASSIFICATION RELION 3.0-b RECONSTRUCTION RELION 3.0-b MODEL REFINEMENT PHENIX 1.17
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 4700000 Manually picked 2000 particles using Relion GUI, followed by 2D-Classification to select templates, then Relion auto-picking was used.