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:P21275	bone morphogenetic protein 4 (mouse)	BMP-2B (mouse)|Bmp-4|BMP-4 (mouse)|Bmp4|bone morphogenetic protein 2B (mouse)|Dvr-4|mBMP4		acts_upstream_of_or_within	GO:0001501	skeletal system development			PMID:14654219|PMID:15936012	IDA	NCBITaxon:10090		UniProtKB:P21275	20080301	PRO:CNA	
PR:P21275	bone morphogenetic protein 4 (mouse)	BMP-2B (mouse)|Bmp-4|BMP-4 (mouse)|Bmp4|bone morphogenetic protein 2B (mouse)|Dvr-4|mBMP4		acts_upstream_of_or_within	GO:0030509	BMP signaling pathway			PMID:14623234	IDA	NCBITaxon:10090		UniProtKB:P21275	20080301	PRO:CNA