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A Coiled Coil Module Strategy for High-Resolution Cryo-EM Structures of Small Proteins for Drug Discovery
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 7.108 f_angle_d 0.564 f_chiral_restr 0.04 f_plane_restr 0.004 f_bond_d 0.003
Sample cryo-EM structure of kRasG12C fused to the APH2 coiled-coil in complex with nanobody Nb26
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 187753 Reported Resolution (Å) 3.77 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON IV (4k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS GLACIOS Minimum Defocus (nm) 800 Maximum Defocus (nm) 2200 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 2.7 Imaging Mode DARK FIELD Specimen Holder Model Nominal Magnification 240000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 200 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC MODEL REFINEMENT PHENIX 1.21.2_5419 RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION