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Glutamine synthetase from Pseudomonas aeruginosa, filament double-unit in compressed conformation
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.727 f_angle_d 0.444 f_chiral_restr 0.041 f_plane_restr 0.004 f_bond_d 0.003
Sample P. aeruginosa GS filament.
Specimen Preparation Sample Aggregation State FILAMENT Vitrification Instrument Cryogen Name ETHANE Sample Vitrification Details
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 346920 Reported Resolution (Å) 2.8 Resolution Method FSC 0.143 CUT-OFF Other Details CryoSPARC GSFSC: no mask 3.3A, loose 3.0A, tight 2.8A, corrected 2.8A. Refinement Type Symmetry Type POINT Point Symmetry C7
Map-Model Fitting and Refinement Id 1 Refinement Space REAL Refinement Protocol FLEXIBLE FIT Refinement Target Cross-correlation coefficient Overall B Value 62 Fitting Procedure Details
Data Acquisition Detector Type FEI FALCON III (4k x 4k) Electron Dose (electrons/Å**2) 40
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model FEI TITAN KRIOS Minimum Defocus (nm) 300 Maximum Defocus (nm) 1500 Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 3.3.2 CTF CORRECTION cryoSPARC 3.3.2 MODEL FITTING ISOLDE 1.4 INITIAL EULER ASSIGNMENT cryoSPARC 3.3.2 FINAL EULER ASSIGNMENT cryoSPARC 3.3.2 RECONSTRUCTION ISOLDE 1.4 MODEL REFINEMENT PHENIX 1.20
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION Patch-based motion correction