7ML4

RNA polymerase II initially transcribing complex (ITC)


ELECTRON MICROSCOPY
Sample
RNA polymerase II initially transcribing complex (ITC)
Sample Components
Pol II + TFIIB + RNA
DNA+TBP+TFIIA+TFIIE+TFIIF
TFIIH
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification Instrument
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles254448
Reported Resolution (Å)3.1
Resolution MethodFSC 0.143 CUT-OFF
Other Detailsfinal map is a composite of 3 individually refined domains
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (5OQJ)
Refinement SpaceREAL
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K3 BIOQUANTUM (6k x 4k)
Electron Dose (electrons/Å**2)45
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)500
Maximum Defocus (nm)2500
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
CTF CORRECTIONCTFFIND4.1
MODEL FITTINGUCSF Chimera
MODEL REFINEMENTPHENIX
CLASSIFICATIONRELION3.1
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION