8CRO

Cryo-EM structure of Pyrococcus furiosus transcription elongation complex


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelSwissModel6kf9 

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d10.237
f_angle_d0.527
f_chiral_restr0.042
f_plane_restr0.004
f_bond_d0.003
Sample
Transcription Elongation Complex (TEC)
Sample Components
Pyrococcus furiosus RNA polymerase
Nucleotide strands
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles333535
Reported Resolution (Å)3.1
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolAB INITIO MODEL
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON III (4k x 4k)
Electron Dose (electrons/Å**2)88.73
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)1200
Maximum Defocus (nm)2000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeOTHER
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
MODEL FITTINGCoot0.9.8.1
INITIAL EULER ASSIGNMENTRELION3.1
FINAL EULER ASSIGNMENTRELION4.0
CLASSIFICATIONRELION4.0
RECONSTRUCTIONRELION
MODEL REFINEMENTPHENIX1.20.1-4487
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION