IPTMnet Search

Search the iPTMnet database for proteins with post-translational modification (PTM) data. Find proteins by gene name, protein name, or keyword. Filter by role (Substrate = modified protein, Enzyme = modifier) and PTM type (Phosphorylation, Acetylation, Ubiquitination, Methylation, etc.). iPTMnet integrates data from PhosphoSitePlus, UniProt, PRO ontology, and text mining. Returns UniProt IDs, PTM site counts, enzyme/substrate roles, and isoform counts.