7SIM

ELECTRON MICROSCOPY

Sample

Homodimer human calcium sensing receptor

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details blot for 4 seconds before plunging
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 105000
Reported Resolution (Å) 2.7
Resolution Method FSC 0.143 CUT-OFF
Other Details Global (ECD) 2.7A TM 3.5A
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 K3 (6k x 4k)
Electron Dose (electrons/Å2) 70.35
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 1000
Maximum Defocus (nm) 2500
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 ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details Preliminary grid screening was performed manually.
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 2.16
IMAGE ACQUISITION Leginon ?
CTF CORRECTION cryoSPARC 2.16
MODEL FITTING Coot 0.9.1
MODEL REFINEMENT PHENIX 1.14
INITIAL EULER ASSIGNMENT cryoSPARC 2.16
FINAL EULER ASSIGNMENT cryoSPARC 3.0
CLASSIFICATION RELION 3.1
RECONSTRUCTION cryoSPARC 3.0
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?