PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3522736-6 1986 High mannose oligosaccharides are added to the Mac-1 alpha and beta polypeptide backbones of Mr = 130,000 and 72,000, respectively, to yield precursors of Mr = 164,000 and 91,000, respectively. mannose oligosaccharides 5-29 integrin alpha M Mus musculus 47-58