ELECTRON MICROSCOPY

Sample

Ternary complex of the NDP-alpha-MSH activated melanocortin 4 receptor (MC4R) Gs protein complex stabilized by nanobody 35

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument FEI VITROBOT MARK IV
Cryogen Name ETHANE
Sample Vitrification Details ?
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 221682
Reported Resolution (Å) 2.86
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 OTHER
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details ?
Data Acquisition
Detector Type FEI FALCON III (4k x 4k)
Electron Dose (electrons/Å2) 40
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 800
Maximum Defocus (nm) 2000
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS ?
Imaging Mode BRIGHT FIELD
Specimen Holder Model FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification 96000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 2.15
IMAGE ACQUISITION EPU 2.8
CTF CORRECTION cryoSPARC 2.15
MODEL FITTING cryoSPARC ?
INITIAL EULER ASSIGNMENT cryoSPARC 2.15
FINAL EULER ASSIGNMENT cryoSPARC 2.15
CLASSIFICATION cryoSPARC 2.15
RECONSTRUCTION cryoSPARC 2.18
MODEL REFINEMENT Coot ?
MODEL REFINEMENT CCP4 package ?
MODEL REFINEMENT PHENIX ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?