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. Author manuscript; available in PMC: 2017 Sep 12.
Published in final edited form as: FEBS Lett. 2016 Sep 12;590(18):3168–3178. doi: 10.1002/1873-3468.12341

Fig 3.

Fig 3

N-glycosylation of S. acidocaldarius SlaB. A. LC-ESI MS analysis of a tryptic fragment of SlaB that includes Asn-278 revealed the peptide (inset) and its modification by a hexasaccharide comprising N-acetylhexosamine2-hexose3-sulfated quinovose. [M+2H]2+ ion peaks are presented. B. MS/MS profile of the [M+2H]2+ base peak of the peptide observed at m/z 1621.72. The inset schematically represents the fragmentation scheme. The N represents Asn-278, diamonds represent N-acetylhexosamines, full circles represent hexoses, open circles represent quinovose and S represents sulfation. The arrows indicating x10 reflect magnification of the ion peaks in the corresponding region of the m/z values on the graph.