<urn:biopax:UnificationXref:PROTEIN+MODIFICATION+ONTOLOGY_MOD%3A00039> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.biopax.org/release/biopax-level3.owl#UnificationXref> .
<urn:biopax:UnificationXref:PROTEIN+MODIFICATION+ONTOLOGY_MOD%3A00039> <http://www.biopax.org/release/biopax-level3.owl#db> "Protein Modification Ontology"^^<http://www.w3.org/2001/XMLSchema#string> .
<urn:biopax:UnificationXref:PROTEIN+MODIFICATION+ONTOLOGY_MOD%3A00039> <http://www.biopax.org/release/biopax-level3.owl#id> "MOD:00039"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://identifiers.org/obo.psi-mod/MOD:00039> <http://www.biopax.org/release/biopax-level3.owl#xref> <urn:biopax:UnificationXref:PROTEIN+MODIFICATION+ONTOLOGY_MOD%3A00039> .