3JAA

HUMAN DNA POLYMERASE ETA in COMPLEX WITH NORMAL DNA AND INCO NUCLEOTIDE (NRM)

ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3MR2

Sample
Ub-PCNA/Pol eta/DNA

Specimen Preparation
Sample Aggregation State	PARTICLE
Staining Type	NEGATIVE
Staining Material	Uranyl Acetate
Staining Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	7330
Reported Resolution (Å)	22
Resolution Method	FSC 0.143 CUT-OFF
Other Details	(Single particle--Applied symmetry: C1)
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Map-Model Fitting and Refinement
Id	1 (3MR2)
Refinement Space	REAL
Refinement Protocol	RIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details	REFINEMENT PROTOCOL--RIGID BODY

Data Acquisition
Detector Type	GATAN ULTRASCAN 4000 (4k x 4k)
Electron Dose (electrons/Å**2)	18

Imaging Experiment	1
Date of Experiment	2014-11-12
Temperature (Kelvin)
Microscope Model	JEOL 2010
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	SIDE ENTRY, EUCENTRIC
Nominal Magnification	50000
Calibrated Magnification
Source	LAB6
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	UCSF Chimera
RECONSTRUCTION	EMAN	2

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	Particles

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.