PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21705224-6 2011 The porpoisamides are a unique pair of cyclic depsipeptides that are epimeric at C-2 of the beta-amino acid, 3-amino-2-methyloctanoic acid. Depsipeptides 39-59 complement C2 Homo sapiens 81-84