Orthology Ontology
Chromatin Regulator Ontology
Source
http://purl.obolibrary.org/obo/OBI_0100026
http://purl.org/net/orth#Organism
LOOM
http://purl.obolibrary.org/obo/OBI_0100026
http://purl.obolibrary.org/obo/NCIT_C14250
LOOM