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Cryo-EM structure of the type I pilus from Escherichia Coli and the surrounding water network
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 15.2449 f_angle_d 0.6762 f_chiral_restr 0.0489 f_bond_d 0.0074 f_plane_restr 0.0046
Sample Type 1 pilus rod assembled from FimA monomers
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument Cryogen Name NITROGEN Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 1593408 Reported Resolution (Å) 2.09 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 7.71 Angular Rotation 114.75
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOCONTINUUM (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 500 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode DIFFRACTION Specimen Holder Model Nominal Magnification 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION EPU 2.10.0 MODEL REFINEMENT PHENIX 1.21.1_5286 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION