The three dimensional structure contains 5 domains, the alpha/beta barrel, 3alpha-bundle and three beta-domains beta1-beta3. The disulphide bridges and the 11 potential glycosylation sites on human MAN2B1 are marked on the structure panel. The proteolytic sites are modelled from the bovine MAN2B1 structure (1o7d, ref). In addition to the peptides a-d, the structure contains two additional proteolytic cuts, which create small peptides d’ and e’.