PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29335207-1 2018 We investigated a series of uracil analogues by introducing various substituents on the phenyl ring of the N-3 aminoethyl side chain and evaluated their antagonistic activity against human gonadotropin-releasing hormone (GnRH) receptors. Uracil 28-34 gonadotropin releasing hormone 1 Homo sapiens 221-225