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Cryo-EM structure of Arf1-decorated membrane tubules
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2KSQ
Sample Arf1 coated membrane tubules
Specimen Preparation Sample Aggregation State HELICAL ARRAY Vitrification Instrument LEICA EM GP Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method HELICAL Number of Particles 127727 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type HELICAL Axial Symmetry C2 Axial Rise 4.328 Angular Rotation 23.27
Map-Model Fitting and Refinement Id 1 (2ksq) Refinement Space REAL Refinement Protocol OTHER Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 21
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS GLACIOS Minimum Defocus (nm) 600 Maximum Defocus (nm) 2800 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model OTHER Nominal Magnification 92000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC v4.3.1, v4.4.2 IMAGE ACQUISITION EPU 2.2.0.65REL CTF CORRECTION cryoSPARC v4.3.1, v4.4.2 MODEL FITTING ISOLDE CLASSIFICATION cryoSPARC v4.3.1, v4.4.2 RECONSTRUCTION cryoSPARC v4.3.1, v4.4.2 MODEL REFINEMENT PHENIX 1.21-5187 MODEL REFINEMENT Coot 0.9.7 EL
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 1489051