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. 2010 Nov;9(11):1766–1775. doi: 10.1128/EC.00134-10

Fig. 3.

Fig. 3.

Representations of the N-linked oligosaccharides from S. cerevisiae (left structure) and N. crassa (right structure). In S. cerevisiae, Och1p adds the initial α-1,6-mannose of a long α-1,6-mannose chain to the N-linked oligosaccharide (GlcNac 2/mannose 8 structure). Side branches containing 2 α-1,2-mannoses and a terminal α-1,3-mannose are added to the mannoses in the α-1,6-chain. In N. crassa, OCH-1 adds the initial α-1,6-mannose of a short chain of α-1,6-mannoses to the N-linked oligosaccharide (GlcNac 2/mannose 8 structure). Approximately 30% of the mannoses in the chain have side branches containing two α-1,2-mannoses and two galactofuranoses.