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Cryo-EM structure of the Glutaminase C core filament (fGAC)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3SS3
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 3.5502 f_angle_d 0.8513 f_chiral_restr 0.0415 f_bond_d 0.0117 f_plane_restr 0.0066
Sample Glutaminase C filament, bound to inorganic phosphate
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 229037 Reported Resolution (Å) 3.1 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry D2
Map-Model Fitting and Refinement Id 1 (3SS3) Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Correlation Coefficient Overall B Value 162.1 Fitting Procedure Details run = *minimization_global *rigid_body local_grid_search *adp *occupancy *nqh_flips
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 30
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 2000 Maximum Defocus (nm) 3000 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS 0.01 Imaging Mode BRIGHT FIELD Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER Nominal Magnification 59000 Calibrated Magnification 59000 Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version CTF CORRECTION cryoSPARC MODEL FITTING PHENIX 1.20.1 MODEL REFINEMENT PHENIX 1.20.1 INITIAL EULER ASSIGNMENT cryoSPARC FINAL EULER ASSIGNMENT cryoSPARC CLASSIFICATION cryoSPARC RECONSTRUCTION cryoSPARC
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details NONE 422097