PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8302756-9 1993 Initial studies concerning induction of protective tumor immunity by immunization with reconstituted membranes with muramyl tripeptide phosphatidylethanolamine indicate that coinjection of IL-2-containing liposomes provided a significant enhancement of the immune response. muramyl tripeptide 116-134 interleukin 2 Homo sapiens 189-193