Distribution of pHGRs along the length of proteins . For each organism, the relative position of the centers of all pHGRs along the length of their respective protein was calculated, as percent distance from the N-terminus. The graph displays the frequency distribution of these pHGR centers in ten groups. A: distribution obtained with the position of O-glycosylation sites obtained from NetOGlyc. B: distribution obtained when the position of the O-glycosylation sites were randomized. C: distribution obtained for the group of B. cinerea secretory enzymes active on polysaccharides, using the not-randomized O-glycosylation positions.