PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32046633-12 2020 Lastly a detailed analysis of the ornithine decarboxylase gene family, a key enzyme in the pathway for polyamine synthesis, revealed lineage-specific evolution along the lineage leading to Cetacea through rapid sequence evolution in a duplicate gene with amino acid substitutions causing active site rearrangement. Polyamines 103-112 ornithine decarboxylase 1 Homo sapiens 34-57