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Dual Wzx/Wzy polysaccharide biosynthesis pathway showing proteins that exhibit specificity for UPPGlcN or UPPGalN, and proteins involved in synthesizing both polysaccharides. Color-coding is consistent with the legend in Fig. 2. IM – inner membrane; PG− Peptidoglycan; OM – outer membrane; GT – glycosyl transferase; Ac – acetylation.
