Table 1.

Endpoints provided by the iPTMnet API

Endpoints	Description/Summary
/search	Search for proteins in the iPTMnet database
/{id}/info	Retrieve top level info about an iPTMnet entry
/{id}/substrate/	Retrieve the list of PTM sites for the given substrate
/{id}/msa/	Retrieve the annotated multiple sequence alignment for the iPTMnet entry
/{id}/proteoforms/	Retrieve the list of PTM-dependent PPI for the iPTMnet entry
/{id}/ptmppi/	Retrieve the list of PPIs for the proteoforms of the iPTMnet entry
/batch_ptm_enzymes	Retrieve PTM enzyme information for a given list of PTM sites
/batch_ptm_ppi	Retrieve PTM dependent PPI information for a given list of PTM sites
/variants	Retrieve the list of PTM variants for the iPTMnet entry