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CryoEM structure of designed modular protein oligomer C6-79
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.8274 f_angle_d 0.7285 f_chiral_restr 0.3174 f_bond_d 0.005 f_plane_restr 0.0046
Sample Self-assembled homo-hexamer of de novo designed protein C6-79
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details blot time = 6s; blot force = 0
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 864566 Reported Resolution (Å) 4 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry C6
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol AB INITIO MODEL Refinement Target Correlation coefficients Overall B Value Fitting Procedure Details Designed oligomer was used as initial model and was initially fit into map using UCSF Chimera
Data Acquisition Detector Type GATAN K3 (6k x 4k) Electron Dose (electrons/Å**2) 61.3
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 81000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC IMAGE ACQUISITION Leginon CTF CORRECTION cryoSPARC MODEL FITTING UCSF Chimera MODEL REFINEMENT PHENIX 1.16 INITIAL EULER ASSIGNMENT cryoSPARC FINAL EULER ASSIGNMENT cryoSPARC RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION