IPTMnet Get Ptm Sites

Get all post-translational modification (PTM) sites for a protein from iPTMnet. Returns residue, position, PTM type, confidence score, source databases, catalytic enzymes, and PubMed references for each site. Data aggregated from PhosphoSitePlus, UniProt, and text mining. Covers phosphorylation, acetylation, ubiquitination, methylation, glycosylation, sumoylation, and more. Results organized by protein isoform. Use with UniProt accession (e.g., P04637 for TP53).