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. 2007 Jul 23;51(10):3546–3553. doi: 10.1128/AAC.00261-07

FIG. 2.

FIG. 2.

Structure of MccE492 and derivatives. MccE492 (8,718 Da) is a posttranslationally modified 84-residue peptide. The modification consists of a trimer of DHBS linked via a C-glycosidic bond to a β-d-glucose moiety that is itself linked to Ser84 through an O-glycosidic bond. u-MccE492 (7,887 Da) is the unmodified 84-residue peptide. u-MccE492-Glc-DHBS (8,272 Da) and u-MccE492-Glc-DHBS2 (8,495 Da) correspond to intermediate forms carrying a β-d-glucose moiety linked to one DHBS and two DHBS moieties, respectively. The amino acid sequence is indicated in italics. The mass differences between the different structures are shown at the top.