3J9W

Cryo-EM structure of the Bacillus subtilis MifM-stalled ribosome complex


ELECTRON MICROSCOPY
Sample
B. subtilis MifM-stalled ribosome complex
Sample Components
70S ribosome
Membrane protein insertion and folding monitor
tRNA-Asp
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification DetailsPlunged into liquid ethane (FEI VITROBOT MARK IV)
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles305045
Reported Resolution (Å)3.9
Resolution MethodFSC 0.143 CUT-OFF
Other DetailsSince images from microscopy were processed in the absence of spatial frequencies higher than 8 A, a FSC cut-off value of 0.143 was used for average r ...Since images from microscopy were processed in the absence of spatial frequencies higher than 8 A, a FSC cut-off value of 0.143 was used for average resolution determination of 3.9 A (Scheres and Chen, 2012). (Single particle--Applied symmetry: C1)
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)28
Imaging Experiment1
Date of Experiment2014-04-12
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification125085
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
RECONSTRUCTIONSPIDER
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
defocus groups