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:000000037	BMP receptor type-2	BMP type II receptor|BMP type-2 receptor|BMPR-2|BMPR-II|BMPR2|bone morphogenetic protein receptor type II|BRK-3|PPH1		acts_upstream_of_or_within	GO:0030509	BMP signaling pathway			PIRSF:PIRSF500434	ISS		PIRSF:PIRSF500434	PIRSF:PIRSF500434|UniProtKB:O35607|UniProtKB:Q13873	20080301	PRO:CNA