PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31092607-0 2019 Contraction of the ROS Scavenging Enzyme Glutathione S-Transferase Gene Family in Cetaceans. Reactive Oxygen Species 19-22 glutathione S-transferase kappa 1 Homo sapiens 41-66