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 5FLM | pdb_00005flm

Structure of transcribing mammalian RNA polymerase II


ELECTRON MICROSCOPY
Sample
BOVINE POL II ELONGATION COMPLEX
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles264134
Reported Resolution (Å)3.4
Resolution Method
Other DetailsTHE FOLLOWING REGIONS WERE MODELED INTO THE UNSHARPENED EC1 MAP (EMDB-3218) DUE TO WEAKER DENSITY. RPB1 433-437, RPB1 1103-1108 (POLY-ALANINE), RPB1 1 ...THE FOLLOWING REGIONS WERE MODELED INTO THE UNSHARPENED EC1 MAP (EMDB-3218) DUE TO WEAKER DENSITY. RPB1 433-437, RPB1 1103-1108 (POLY-ALANINE), RPB1 1198-1205, RPB1 1262-1267, RPB1 1278-1281, RPB2 242-252, RPB2 326-331, RPB2 457-461 SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3218. (DEPOSITION ID: 13928).
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement Target
Overall B Value137
Fitting Procedure
DetailsREFINEMENT PROTOCOL--CRYO-EM
Data Acquisition
Detector TypeGATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)43
Imaging Experiment1
Date of Experiment2014-12-01
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)600
Maximum Defocus (nm)3100
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification37000
Calibrated Magnification37037
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
RECONSTRUCTIONRELION1.3
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
INDIVIDUAL PARTICLES