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A8B8 photosynthetic glyceraldeyde 3-phospahte dehydrogenase hetero-hexadecamer (major conformer) complexed with NAD
Specimen Preparation
Sample Aggregation State
PARTICLE
Vitrification Instrument
FEI VITROBOT MARK IV
Cryogen Name
ETHANE
Sample Vitrification Details
Vitrification carried out in conventional atmosphere.
3D Reconstruction
Reconstruction Method
SINGLE PARTICLE
Number of Particles
55141
Reported Resolution (Å)
3.1
Resolution Method
FSC 0.143 CUT-OFF
Other Details
RELION was used for the reconstruction.
Refinement Type
Symmetry Type
POINT
Point Symmetry
C2
Map-Model Fitting and Refinement
Id
1 (2PKQ)
Refinement Space
REAL
Refinement Protocol
RIGID BODY FIT
Refinement Target
Cross-correlation coefficient
Overall B Value
Fitting Procedure
Details
Initial local fitting was done unsing ChimeraX starting from the crystallographic model PDB ID 2PKQ. Refinement was obtained trough several iterative ...
Initial local fitting was done unsing ChimeraX starting from the crystallographic model PDB ID 2PKQ. Refinement was obtained trough several iterative cycles of Coot manual adjustment and Phenix real space refinement.
Data Acquisition
Detector Type
FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)
40
Imaging Experiment
1
Date of Experiment
Temperature (Kelvin)
Microscope Model
TFS KRIOS
Minimum Defocus (nm)
1500
Maximum Defocus (nm)
3000
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
Calibrated Magnification
Source
FIELD EMISSION GUN
Acceleration Voltage (kV)
300
Imaging Details
Preliminary grid screening was perfomed manually on a FEI Tecnai G2 F20 TEM equipped with cryo-box and direct electron detector.