| gptkbp:instanceOf | gptkb:protein 
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                                | gptkbp:alsoKnownAs | seven-transmembrane receptors heptahelical receptors
 7-transmembrane domain receptors
 
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                                | gptkbp:C-terminusLocation | intracellular 
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                                | gptkbp:component | gptkb:cell_membrane 
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                                | gptkbp:database | InterPro: IPR000276 PROSITE: PS50262
 Pfam: PF00001
 UniProtKB family: 7tm_1
 
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                                | gptkbp:discoveredBy | gptkb:Robert_J._Lefkowitz 
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                                | gptkbp:evolvesFrom | ancient protein family 
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                                | gptkbp:example | gptkb:receptor_tyrosine_kinase gptkb:angiotensin_receptor
 gptkb:beta-adrenergic_receptor
 gptkb:muscarinic_acetylcholine_receptor
 gptkb:rhodopsin
 gptkb:opioid
 gptkb:antihistamine
 gptkb:chemokine_receptor
 gptkb:dopamine_receptor
 
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                                | gptkbp:foundIn | eukaryotes 
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                                | gptkbp:function | signal transduction 
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                                | gptkbp:GO_term | GO:0004930 
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                                | gptkbp:ligand | ions light
 hormones
 neurotransmitters
 peptides
 odorants
 
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                                | gptkbp:mechanismOfAction | activate G proteins initiate intracellular signaling cascades
 
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                                | gptkbp:mutationAssociatedWith | can cause disease 
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                                | gptkbp:N-terminusLocation | extracellular 
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                                | gptkbp:numberOfGenes | over 800 
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                                | gptkbp:pharmacologicalImportance | target of ~30% of marketed drugs 
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                                | gptkbp:researchArea | gptkb:pharmacy biochemistry
 molecular biology
 
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                                | gptkbp:signalTransductionPathway | gptkb:MAPK_pathway gptkb:cAMP_pathway
 phospholipase C pathway
 
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                                | gptkbp:significance | drug targets 
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                                | gptkbp:structure | seven transmembrane alpha helices 
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                                | gptkbp:subclassOf | gptkb:cell_surface_receptor gptkb:G_protein-coupled_receptors
 
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                                | gptkbp:bfsParent | gptkb:GPCRs 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | 7TM receptors 
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