PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8821530-17 1996 These results suggest that SB 206553 is a potent mixed 5-HT2C/5-HT2B receptor antagonist with selectivity over the 5-HT2A and all other sites studied and possesses anxiolytic-like properties. SB 206553 27-36 5-hydroxytryptamine receptor 2A Homo sapiens 115-121