7X9W

Sulfur Oxygenase Reductase from Acidianus ambivalens


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d17.487
f_angle_d0.742
f_chiral_restr0.051
f_bond_d0.007
f_plane_restr0.007
Sample
CryoEM structure of Sulfur Oxygenase Reductase composed of 24 identical subunits
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK I
Cryogen NameETHANE
Sample Vitrification DetailsThe purified protein was applied to the glow discharged grids inside the chamber, blotted for a duration of 1.5 s, and then plunge-frozen in liquid et ...The purified protein was applied to the glow discharged grids inside the chamber, blotted for a duration of 1.5 s, and then plunge-frozen in liquid ethane cooled by liquid nitrogen.
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles207550
Reported Resolution (Å)2.78
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryO
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)68
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)1500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification130000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
RECONSTRUCTIONRELION
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE391093particles were selected by LoG picking from 800 micrographs