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Cryo-EM structure of Human ACE2 bound to a high-affinity SARS CoV-2 mutant
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 6M0J
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 15.1769 f_angle_d 0.5392 f_chiral_restr 0.0393 f_plane_restr 0.0042 f_bond_d 0.0024
Sample Complex of Human ACE2 and SARS CoV-2 RBD Sample Components SARS CoV-2 RBD Angiotensin converting enzyme 2
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details Blot for 3 seconds. Wait time of 30 seconds for graphene oxide grids and 0 seconds for holey grids.
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 1010543 Reported Resolution (Å) 3.2 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C1
Map-Model Fitting and Refinement Id 1 (6M0J) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type GATAN K3 BIOQUANTUM (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) 700 Maximum Defocus (nm) 2700 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 105000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version IMAGE ACQUISITION EPU CTF CORRECTION Gctf 1.18 MODEL FITTING Coot 0.9.6 INITIAL EULER ASSIGNMENT RELION 3.1 FINAL EULER ASSIGNMENT RELION 3.1 RECONSTRUCTION RELION 3.1 MODEL REFINEMENT PHENIX 1.19.2
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION 4312106