PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12235155-7 2002 Both proteins contain a DXD motif found in the active site of many glycosyltransferases, and mutations in this motif in Mnn9p or Van1p reveal that both proteins contribute to mannose polymerization. Mannose 175-182 mannosyltransferase complex subunit MNN9 Saccharomyces cerevisiae S288C 120-125