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High-resolution cryo-EM reconstruction of Taxol-stabilized microtubule
Sample Ternary complex of Taxol-stabilized microtubule lattice, alpha-tubulin, and beta-tubulin
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Blot for 4 seconds, blot force 10, before plunging into liquid ethane (FEI VITROBOT MARK IV).
3D Reconstruction Reconstruction Method HELICAL Number of Particles 17069 Reported Resolution (Å) 3.5 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 9.48 Angular Rotation -27.7
Map-Model Fitting and Refinement Id 1 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) 8
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN 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 GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER Nominal Magnification 27500 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION Leginon 3.2 IMAGE ACQUISITION Appion 3.2 CTF CORRECTION CTFFIND 4 MODEL FITTING UCSF Chimera 1.10 MODEL REFINEMENT Rosetta 3.6 MODEL REFINEMENT REFMAC 5.5 INITIAL EULER ASSIGNMENT EMAN2 2.07 FINAL EULER ASSIGNMENT FREALIGN 9.09 RECONSTRUCTION FREALIGN 9.09
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 27275 Microtubule filaments were manually selected using manualpicker.py.