7K3V

Apoferritin structure at 1.34 angstrom resolution determined from a 300 kV Titan Krios G3i electron microscope with K3 detector


ELECTRON MICROSCOPY
Sample
Apoferritin
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles902455
Reported Resolution (Å)1.34
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryO
Map-Model Fitting and Refinement
Id1 (3AJO)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement TargetCC
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)300
Maximum Defocus (nm)1000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONEMAN2.3
IMAGE ACQUISITIONEPU2.7
CTF CORRECTIONCTFFIND4
MODEL FITTINGUCSF Chimera1.13
RECONSTRUCTIONRELION3.1
MODEL REFINEMENTPHENIX1.18.2_3874
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION1176336