7YP9

Cryo-EM structure of Escherichia coli paused complex of transcription termination (TTC-pause)


ELECTRON MICROSCOPY
Sample
E. coli paused complex of transcription termination
Sample Components
DNA-directed RNA polymerase
DNA/RNA
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles132648
Reported Resolution (Å)3.58
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (6ALF)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)60.8
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1200
Maximum Defocus (nm)2200
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
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONRELION3.08
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONCTFFIND4
MODEL FITTINGUCSF Chimera1.10.2
MODEL REFINEMENTPHENIX1.14
INITIAL EULER ASSIGNMENTRELION3.08
FINAL EULER ASSIGNMENTRELION3.08
CLASSIFICATIONRELION3.08
RECONSTRUCTIONRELION3.08
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE203216