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The Cryo-Electron Microscopy Structure of the Type 1 Chaperone-Usher Pilus Rod
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2JTY
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 7.755 f_angle_d 0.618 f_chiral_restr 0.047 f_plane_restr 0.004 f_bond_d 0.003
Sample Type 1 Chaperone-usher pilus
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 115510 Reported Resolution (Å) 4.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 8.01188 Angular Rotation 114.992
Map-Model Fitting and Refinement Id 1 (2JTY, 2JTY) Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 1.7
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI POLARA 300 Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION 2.0 CTF CORRECTION Gctf MODEL REFINEMENT PHENIX RECONSTRUCTION RELION 2.0
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 115545