PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24349312-6 2013 We have confirmed that the acid form of the peptide is more potent than its amide form at both RXFP3 and RXFP4 receptors. Amides 76-81 relaxin family peptide receptor 3 Homo sapiens 95-100 33214850-4 2020 As expected, the C-terminal amide form of A2 showed lower binding affinity for RXFP3 while ester and alcohol substitutions also demonstrated lower affinity. Amides 28-33 relaxin family peptide receptor 3 Homo sapiens 79-84