PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2141111-7 1990 In contrast, application of high concentrations of alpha-methyl-5-hydroxytryptamine, a serotonin analog which activates 5-HT1C and 5-HT2 receptor subtypes, depolarized motoneurons. alpha-methylserotonin 51-83 5-hydroxytryptamine receptor 2C Homo sapiens 120-126