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 3JCE | pdb_00003jce

Structure of Escherichia coli EF4 in pretranslocational ribosomes (Pre EF4)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4V9O 
Sample
EF4 BOUND TO PRE 70S RIBOSOME
Sample Components
EF4
ribosome 70S
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles107706
Reported Resolution (Å)3.2
Resolution Method
Other Details(SINGLE PARTICLE DETAILS: THE PARTICLES WERE SELECTED USING AN AUTOMATIC SELECTION PROGRAM.) (SINGLE PARTICLE- -APPLIED SYMMETRY: C1)
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (4V9O)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Target
Overall B Value
Fitting Procedure
DetailsREFINEMENT PROTOCOL--FLEXIBLE
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)
Imaging Experiment1
Date of Experiment2014-10-20
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details