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Cryo-EM structure of Arthrobacter alpinus Trehalose synthase
Refinement RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 4.4578 f_angle_d 0.5013 f_chiral_restr 0.043 f_plane_restr 0.0043 f_bond_d 0.0022
Sample Cryo-EM structure of recombinant trehalose synthase from Arthrobacter alpinus
Specimen Preparation Sample Aggregation State PARTICLE Vitrification Instrument FEI VITROBOT MARK IV Cryogen Name ETHANE Sample Vitrification Details 4 uL of sample at 3 mg/mL was applied to glow discharged Quantifoil R1.2/1.3 Cu 300 mesh grids and blotted for 3 s
3D Reconstruction Reconstruction Method SINGLE PARTICLE Number of Particles 431458 Reported Resolution (Å) 1.64 Resolution Method FSC 0.143 CUT-OFF Other Details Refinement Type Symmetry Type POINT Point Symmetry D2
Map-Model Fitting and Refinement Id 1 Refinement Space Refinement Protocol Refinement Target Overall B Value Fitting Procedure Details
Data Acquisition Detector Type TFS FALCON 4i (4k x 4k) Electron Dose (electrons/Å**2) 60
Imaging Experiment 1 Date of Experiment Temperature (Kelvin) Microscope Model TFS KRIOS Minimum Defocus (nm) 400 Maximum Defocus (nm) 1400 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 215000 Calibrated Magnification Source FIELD EMISSION GUN Acceleration Voltage (kV) 300 Imaging Details
EM Software Task Software Package Version PARTICLE SELECTION cryoSPARC 4.6.2 IMAGE ACQUISITION EPU CTF CORRECTION cryoSPARC 4.6.2 RECONSTRUCTION cryoSPARC 4.6.2 MODEL REFINEMENT PHENIX 1.21_5207
Image Processing CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details PHASE FLIPPING AND AMPLITUDE CORRECTION