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:000025947 smad2-smad4 protein complex 4 (human) h(SMAD2:SMAD4):4 acts_upstream_of_or_within GO:0030512 negative regulation of transforming growth factor beta receptor signaling pathway PMID:11027280 EXP NCBITaxon:9606 20101005 PRO:CNA PR:000025947 smad2-smad4 protein complex 4 (human) h(SMAD2:SMAD4):4 located_in GO:0005737 cytoplasm PMID:11027280 EXP NCBITaxon:9606 20101005 PRO:CNA