8HLA

Heteromeric ring comprised of peroxiredoxin from Thermococcus kodakaraensis (TkPrx) F42C/C46S/C205S/C211S mutant modified with 2-(bromoacetyl)naphthalene (Naph@TkPrxF42C) and TkPrx C46S/F76C/C205S/C211S mutant modified with 2-(bromoacetyl)naphthalene (Naph@TkPrxF76C) (Naph@(MIX|3:3))

ELECTRON MICROSCOPY

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	21.39
f_angle_d	0.938
f_chiral_restr	0.065
f_bond_d	0.011
f_plane_restr	0.006

Sample
Naph@MIX

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	599283
Reported Resolution (Å)	2.81
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	GATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)	40

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	JEOL CRYO ARM 300
Minimum Defocus (nm)	1000
Maximum Defocus (nm)	1800
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	JEOL CRYOSPECPORTER
Nominal Magnification	60000
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
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 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 R01GM133198.