5SVA

Mediator-RNA Polymerase II Pre-Initiation Complex

ELECTRON MICROSCOPY

Sample
Mediator-RNA Polymerase II Pre-Initiation Complex

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	170600
Reported Resolution (Å)	15.3
Resolution Method	FSC 0.143 CUT-OFF
Other Details	The structural interpretation of the Med-PIC complex, described in Robinson et. al. 2016 (Cell volume 166, issue 6, pages 1411-1422), was performed us ...	The structural interpretation of the Med-PIC complex, described in Robinson et. al. 2016 (Cell volume 166, issue 6, pages 1411-1422), was performed using models for the GTFs, TFIIF, TFIIH, and TFIIE derived from PDB entry 5FMF. In the current PDB submission, minor revisions to these GTF models have been performed subsequent to the reported structural interpretation to address issues in PDB entry 5FMF relating to sequence connectivity.
Refinement Type
Symmetry Type	POINT

Data Acquisition
Detector Type	GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å**2)	15

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TECNAI 20
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
NONE

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.