| Name | Metaprefix | URI |
|---|---|---|
| Reference Sequence Collection | refseq |
https://www.ncbi.nlm.nih.gov/protein/NP_012345 |
| Bioregistry | bioregistry |
https://bioregistry.io/refseq:NP_012345 |
| Identifiers.org | miriam |
https://identifiers.org/refseq:NP_012345 |
| Name-to-Thing | n2t |
https://n2t.net/refseq:NP_012345 |