PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7498967-6 1995 The tryptophan metabolite kynuramine, which possesses significant contractile activity at the 5-HT2B receptor, contracted hypertensive arteries significantly (50% of 5-HT maximum) but not sham arteries. Kynuramine 26-36 5-hydroxytryptamine receptor 2B Rattus norvegicus 94-100