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Atomic structure of Salmonella SipA/F-actin complex by cryo-EM
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 9.979 f_angle_d 0.604 f_chiral_restr 0.046 f_bond_d 0.004 f_plane_restr 0.004
Sample Salmonella SipA/F-actin complex Sample Components Actin, alpha skeletal muscle SipA
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details 3 uL of sample was applied on Lacey grid, then sample was blotted for 3 seconds and plunge-froze in liquid ethane
3D Reconstruction Reconstruction Method HELICAL Number of Particles 1548993 Reported Resolution (Å) 3.2 Resolution Method FSC 0.143 CUT-OFF Other Details Reconstruction algorithm: helical refinement and non-uniform refinement in cryoSPARC that is similar to IHRSR algorithm Refinement Type Symmetry Type HELICAL Axial Symmetry C1 Axial Rise 112.075 Angular Rotation 53.656
Map-Model Fitting and Refinement Id 1 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) 48
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 1200 Maximum Defocus (nm) 2400 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 CTF CORRECTION cryoSPARC 4.0.2 MODEL FITTING UCSF ChimeraX 1.3 MODEL FITTING Coot 0.9.8.1 MODEL REFINEMENT PHENIX 1.3 MODEL REFINEMENT Coot 0.9.8.1 INITIAL EULER ASSIGNMENT cryoSPARC 4.0.2 FINAL EULER ASSIGNMENT cryoSPARC 4.0.2 CLASSIFICATION cryoSPARC 4.0.2 RECONSTRUCTION cryoSPARC 4.0.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION