ELECTRON MICROSCOPY

Sample

Streptococcus thermophilus SHP pheromone receptor Rgg3 in complex with SHP3

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details 2.5 microliters Rgg3St-SHP3 was applied to glow-discharged UltraAuFoil (1.2/1.3) 300-mesh grids (Quantifoil), blotted with filter paper for 3-3.5 s, and flash-frozen by plunging in liquid ethane cooled with liquid nitrogen. Grids were stored in liquid nitrogen.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 44069
Reported Resolution (Å) 2.95
Resolution Method FSC 0.143 CUT-OFF
Other Details ?
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol FLEXIBLE FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å2) 47.13
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TALOS ARCTICA
Minimum Defocus (nm) ?
Maximum Defocus (nm) ?
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 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 200
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 2.13.2
IMAGE ACQUISITION EPU 1.x
CTF CORRECTION cryoSPARC 2.13.2
MODEL FITTING UCSF Chimera ?
MODEL REFINEMENT PHENIX ?
INITIAL EULER ASSIGNMENT cryoSPARC 2.13.2
FINAL EULER ASSIGNMENT cryoSPARC 2.13.2
RECONSTRUCTION cryoSPARC 2.13.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?
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