6RVV

Structure of left-handed protein cage consisting of 24 eleven-membered ring proteins held together by gold (I) bridges.

ELECTRON MICROSCOPY

Sample
LH TRAP protein cage

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE
Sample Vitrification Details	3.0 s blotting time

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	82125
Reported Resolution (Å)	3.7
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1 (4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F, 4V4F)
Refinement Space	REAL
Refinement Protocol	OTHER
Refinement Target	gradient-driven minimization of combined map and restraints target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)	40

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	PHENIX
MODEL REFINEMENT	PHENIX

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION

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.