| Provider Name | Provider Code | URI |
|---|---|---|
| PIR Superfamily Classification System | pirsf |
https://pir.georgetown.edu/cgi-bin/ipcSF?id=PIRSF000100 |
| Bioregistry | bioregistry |
https://bioregistry.io/pirsf:PIRSF000100 |
| Identifiers.org | miriam |
https://identifiers.org/pirsf:PIRSF000100 |
| Name-to-Thing | n2t |
https://n2t.net/pirsf:PIRSF000100 |