PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19361194-5 2009 Addition of sialyl LacNAc to GLP-1 greatly improved stability against DPP-IV and NEP 24.11 as compared to the native type. N-acetyllactosamine 19-25 membrane metallo endopeptidase Mus musculus 81-84