PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7720088-4 1995 When IFN-beta-treated cells were incubated in the presence of specified amounts of bacterial lipopolysaccharide (LPS) or liposome-encapsulated muramyl tripeptide (MTP), peak IDO activity increased such that enzyme activity was comparable to maximal activity observed with IFN-gamma-treated cells. muramyl tripeptide 143-161 interferon beta 1 Homo sapiens 5-13