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Cryo-EM structure of apo-state huamn angiotensin-converting enzyme 2 (ACE2)
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.837 f_angle_d 0.752 f_chiral_restr 0.045 f_plane_restr 0.008 f_bond_d 0.004
Sample Human angiotensin-converting enzyme 2 (ACE2)
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument HOMEMADE PLUNGER Cryogen Name ETHANE Sample Vitrification Details Vitrification carried out through ESI-cryoPrep method.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 121524 Reported Resolution (Å) 3.34 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol OTHER Refinement Target Overall B Value 83.57 Fitting Procedure Details Initial local fitting was done with a deep-learning based software cryonet.
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 50
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 1000 Maximum Defocus (nm) 1400 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 81000 Calibrated Magnification 81000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version MODEL FITTING UCSF ChimeraX INITIAL EULER ASSIGNMENT RELION 3.1 MODEL REFINEMENT Coot 0.9.8.1 MODEL REFINEMENT PHENIX
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION