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CryoEM reconstruction of full-length, fully-glycosylated human butyrylcholinesterase tetramer
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4AQD experimental model PDB 1VZJ
Sample heteropentameric complex consisting of four copies of butyrylcholinesterase and one copy of a lamellipodin-derived polyproline peptide
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot for either 2s or 3s at blot force -2 or 0, respectively
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 111986 Reported Resolution (Å) 5.7 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C2
Map-Model Fitting and Refinement Id 1 (4AQD, 1VZJ) Refinement Space REAL Refinement Protocol RIGID BODY FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K2 SUMMIT (4k x 4k) Electron Dose (electrons/Å**2) 49.5
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TALOS ARCTICA Minimum Defocus (nm) 1200 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model OTHER Nominal Magnification 130000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION RELION IMAGE ACQUISITION EPU CTF CORRECTION Gctf MODEL FITTING UCSF Chimera INITIAL EULER ASSIGNMENT RELION FINAL EULER ASSIGNMENT RELION RECONSTRUCTION RELION MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 414189