6ZTM

E. coli 70S-RNAP expressome complex in collided state without NusG


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4YBB 
experimental modelPDB 6ALH 
Sample
Uncoupled E. coli expressome, state 1
Sample Components
70S ribosome within the E. coli 70S-RNAP expressome complex in collided state without NusG
DNA-directed RNA polymerase within the E. coli 70S-RNAP expressome complex in collided state without NusG
synthetic mRNA and template DNA strands
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles18552
Reported Resolution (Å)3.3
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (4YBB, 6ALH)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement TargetCorrelation coefficient
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)42
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)700
Maximum Defocus (nm)3500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
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 SELECTIONRELION3.0.4
IMAGE ACQUISITIONEPU
CTF CORRECTIONGctf0.56
MODEL FITTINGUCSF Chimera
MODEL REFINEMENTPHENIX1.16
INITIAL EULER ASSIGNMENTRELION3.0.4
FINAL EULER ASSIGNMENTRELION3.0.4
RECONSTRUCTIONRELION3.0.4
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION157304