Sequence Types and Features Ontology	Major Histocompatibility Complex Ontology	Source
http://purl.obolibrary.org/obo/SO_0000704	http://purl.org/stemnet/MHC#Gene	LOOM
http://purl.obolibrary.org/obo/SO_0000104	http://purl.org/stemnet/MHC#Polypeptide	LOOM
http://purl.obolibrary.org/obo/SO_0001217	http://purl.org/stemnet/MHC#Protein_Coding_Gene	LOOM
http://purl.obolibrary.org/obo/SO_0000336	http://purl.org/stemnet/MHC#Pseudogene	LOOM
http://purl.obolibrary.org/obo/SO_0001023	http://purl.org/stemnet/MHC#Allele	LOOM