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:000025790 T-cell-specific surface glycoprotein CD28 isoform 1, signal peptide removed phosphorylated 1 (human) hCD28/iso:1/SigPep-/Phos:1|PRO_0000014652, Tyr-191, MOD:00048|UniProtKB:P10747-1, 19-220, Tyr-191, MOD:00048 located_in GO:0005886 plasma membrane Reactome:REACT_20178 EXP NCBITaxon:9606 UniProtKB:P10747-1 20100718 PRO:CNA