PRO_ID	Object_term	Object_syny	Modifier	Relation	Ontology_ID	Ontology_term	Relative_to	Interaction_with	Evidence_source	Evidence_code	Taxon	Inferred_from	DB_ID	Date	Assigned_by	Comment
PR:000000165	bone morphogenetic protein 4	BMP-2B|BMP-4|BMP2B|BMP4|bone morphogenetic protein 2B|Dvr-4|DVR4		acts_upstream_of_or_within	GO:0001501	skeletal system development			PANTHER:PTHR11848:SF49	ISS		PANTHER:PTHR11848:SF49	PANTHER:PTHR11848:SF49|UniProtKB:P12644|UniProtKB:P21275|UniProtKB:Q3ULR1	20080301	PRO:CNA