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. 2011 May 23;108(23):9643–9648. doi: 10.1073/pnas.1103321108

Fig. 5.

Fig. 5.

PglA and PglH compete for substrates generated by PglB/PglB2 in a branched pathway for protein glycan biosynthesis. (A) PglH is involved in the broad-spectrum O-linked glycosylation systems in Neisseria by adding glucose onto diNacBac or GATDH UndPP monosaccharide. (B) The figure displays the chemical reactions of the phospho-glycosyltransferases, PglB/PglB2, and the glycosyltransferases, PglA and PglH. Boxed are the substrates (R) for the two glycosyltransferases, PglB and PglB2, and side groups (R′) on the glycans. Und, undecaprenol; UDP, uridine diphosphate.