The post-translational modifications used in the UniProt knowledgebase (Swiss-Prot and TrEMBL). The definition of the post-translational modifications usage as well as other information is provided in the following format

Prefix
uniprot.ptm
Alternative Prefixes
PTM
Keywords
biochemistry post-translational modification structural biology
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in UniProt Post-Translational Modification should match this regular expression:
^PTM-\d{4}$

Example Local Unique Identifier
PTM-0450   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from UniProt Post-Translational Modification should match this regular expression:
^uniprot\.ptm:PTM-\d{4}$

Example CURIE
uniprot.ptm:PTM-0450
References
Contributors
Ontology

A summary of the relations in the Bioregistry schema can be found here.

Part Of (bfo:0000050 )
uniprot
Providers

Providers are various services that resolve CURIEs to URLs. The example CURIE uniprot.ptm:PTM-0450 is used to demonstrate the provides available for this resource. Generation of OLS and BioPortal URLs requires additional programmatic logic beyond string formatting.

Name Metaprefix URI
UniProt Post-Translational Modification uniprot.ptm https://biopragmatics.github.io/providers/uniprot.ptm/PTM-0450
Bioregistry bioregistry https://bioregistry.io/uniprot.ptm:PTM-0450