| X [auth Y] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| W [auth X] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| V [auth W] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| U [auth V] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| T [auth U] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| S [auth T] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| R [auth S] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| Q [auth R] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| P [auth Q] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| O [auth P] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| N [auth O] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| M [auth N] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| L [auth M] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| K [auth L] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| J [auth K] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| I [auth J] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| H [auth I] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| G [auth H] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| F [auth G] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| E [auth F] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| D [auth E] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| C [auth D] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| B [auth C] | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |
| A | 1.20.1260.10 | Mainly Alpha | Up-down Bundle | Ferritin | Ferritin, core subunit, four-helix bundle | CATH (utative) |