Skip to main content
. 2014 Jun 11;9(6):e99026. doi: 10.1371/journal.pone.0099026

Figure 2. MS analysis of sialylation of GalNAcosylated synthetic HR glycopeptides (sHR) by ST6GalNAcI.

Figure 2

(A) Acceptor sHR glycopeptides for ST6GalNAcI with 3 to 7 GalNAc residues were generated by recombinant GalNAc-T2 after a 15-min reaction. (B) sHR glycopeptides produced after over-night reaction with ST6GalNAcI. Symbols: GalNAc, square; NeuAc, diamond. Red symbols: glycopeptides ionized as 4+ ions; Blue symbols: glycopeptides ionized as 3+ ions.