Ferritin-like protein

UniProtKB accession:  A0A0F5HNH9

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UniProtKB description:  Cargo protein of a type 1 encapsulin nanocompartment. A ferritin-like iron-binding protein probably involved in iron mineralization in the encapsulin nanocompartment. Has ferroxidase activity even when encapsulated, the rate is probably controlled by the rate of Fe flux across the nanocompartment pores (PubMed:31282860). Part of the iron-mineralizing encapsulin-associated Firmicute (IMEF) system. 2 different cargo proteins have been identified (IMEF and Fer); when both are expressed in E.coli with the shell protein only IMEF is detected within the nanocompartment. E.coli expressing all 3 genes stores the largest amount of iron and is protected from Fe/H2O2-induced oxidative stress (PubMed:28263314).