PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 35264969-9 2022 The presence of a halogen substitute, regardless of the position, in the fluorophenyl moiety next to the piperazine ring was essential for the inhibitory effects on ENT1 and ENT2. Piperazine 105-115 solute carrier family 29 member 2 Homo sapiens 174-178