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Cryo-EM reconstruction of the CFA/I bacterial adhesion pili
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6NRV
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.389 f_angle_d 0.816 f_chiral_restr 0.045 f_plane_restr 0.004 f_bond_d 0.002
Sample CFA/I bacterial adhesion pili
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument FEI VITROBOT MARK III Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 325069 Reported Resolution (Å) 3.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 8.505 Angular Rotation 113.37
Map-Model Fitting and Refinement Id 1 (6NRV) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 53.7
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 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 3.1.1 IMAGE ACQUISITION Leginon CTF CORRECTION CTFFIND 4.0 MODEL FITTING PHENIX 1.18 MODEL FITTING UCSF Chimera 1.14 INITIAL EULER ASSIGNMENT RELION 3.1.1 FINAL EULER ASSIGNMENT RELION 3.1.1 RECONSTRUCTION RELION 3.1.1 MODEL REFINEMENT PHENIX 1.18 MODEL REFINEMENT ISOLDE 1.4
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 6094726