family 2B encapsulin nanocompartment shell protein
Capsid-like encapsulin nanocompartments are commonly found in bacteria and archaea. Encapsulin nanocompartments, which are assembled from shell proteins, encapsulate various cargo proteins, typically peroxidases or ferritin-like proteins, to protect cells from oxidative stress caused by peroxide.
Jiyao W et al.(2023). "The conserved domain database in 2023.",