Biological interlocked Process Ontology for metabolism Enzyme Structure Function Ontology Source
http://purl.obolibrary.org/obo/BiPOm#cofactor http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#Cofactor LOOM
http://purl.obolibrary.org/obo/BiPOm#Enzyme http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#Enzyme LOOM