FlyBase Controlled Vocabulary Enzyme Structure Function Ontology Source
http://purl.obolibrary.org/obo/CHEBI_23357 http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#Cofactor LOOM
http://purl.obolibrary.org/obo/CHEBI_33708 http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#AminoAcidResidue LOOM