8VC1

ELECTRON MICROSCOPY

Sample

Agonist-free BmGr9 homotetramer

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 1011451
Reported Resolution (Å) 2.85
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 cross-correlation coefficient
Overall B Value 58.19
Fitting Procedure ?
Details Initial fitting was done using DockInMap in PHENIX and refined through cycles of manual rebuilding in Coot, real-space refinement in PHENIX, and remodeling by simulations run in the ISOLDE plugin of ChimeraX.
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 74.492
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model TFS KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2200
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 105000
Calibrated Magnification 60240
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION crYOLO 1.9.6
IMAGE ACQUISITION SerialEM 4.1
CTF CORRECTION CTFFIND 4.1.14
MODEL FITTING ISOLDE ?
MODEL FITTING Coot 0.9.8.91
MODEL REFINEMENT PHENIX 1.20.1-4487-000
INITIAL EULER ASSIGNMENT RELION 4.0.1
FINAL EULER ASSIGNMENT cryoSPARC 3.3.2
RECONSTRUCTION cryoSPARC 3.3.2
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?