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:Q9H2X0-4	chordin isoform 4 (human)	hCHRD/iso:4		acts_upstream_of_or_within	GO:0030514	negative regulation of BMP signaling pathway			PMID:11472837	IDA	NCBITaxon:9606		UniProtKB:Q9H2X0-4	20080301	PRO:CNA