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Cryo-EM structure of the E. coli beta sliding clamp
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold AF-P0A988-F1
Sample E. coli beta sliding clamp
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 89946 Reported Resolution (Å) 3.55 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 76.4
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model JEOL CRYO ARM 200 Minimum Defocus (nm) 1000 Maximum Defocus (nm) 1300 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 1.55 Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification 80000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 5.0.0 IMAGE ACQUISITION SerialEM CTF CORRECTION cryoSPARC 5.0.0 MODEL FITTING PHENIX INITIAL EULER ASSIGNMENT cryoSPARC 5.0.0 FINAL EULER ASSIGNMENT cryoSPARC 5.0.0 CLASSIFICATION cryoSPARC 5.0.0 RECONSTRUCTION cryoSPARC 5.0.0 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 3625782