ELECTRON MICROSCOPY

Sample

Ternary complex formed between the DARPin NY_1 and HLA-A0201/hb2m/NY-ESO1_157-165(9V)

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 204743
Reported Resolution (Å) 3.1
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 ?
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details The crystal structures of NY_1 and HLA-A0201/NY-ESO1 (PDB 1S9W) were placed into the initial map in ChimeraX. The model was iteratively refined by model building in Coot and ChimeraX-Isolde, as well as Phenix real space refinement with integrated amber force field with Ramachandran, secondary structure and reference structure restraints
Data Acquisition
Detector Type GATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å2) 57.5
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TITAN KRIOS
Minimum Defocus (nm) 600
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 130000
Calibrated Magnification ?
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details ?
Imaging Experiment
Task Software Package Version
PARTICLE SELECTION cryoSPARC 3.3.1
IMAGE ACQUISITION EPU 2.8.1
CTF CORRECTION cryoSPARC 3.3.1
MODEL FITTING UCSF ChimeraX 1.1.1
MODEL FITTING ISOLDE 1.1.0
MODEL FITTING Coot 0.9.5
MODEL REFINEMENT PHENIX 1.19
INITIAL EULER ASSIGNMENT cryoSPARC 3.3.1
FINAL EULER ASSIGNMENT cryoSPARC 3.3.1
CLASSIFICATION cryoSPARC 3.3.1
RECONSTRUCTION cryoSPARC 3.3.1
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION ?