Analyses of biosynthesis mutants reveal that the fifth and sixth sugars of the Porphyromonas gingivalis O-glycan are L-fucose and N-acetylgalactosamine respectively.

Abstract excerpt

The oral pathogen, Porphyromonas gingivalis has a general O-glycosylation system which it utilises to modify hundreds of proteins localised outside of the cytoplasm. The O-glycan is a heptasaccharide that includes a putative L-fucose and N-acetylgalactosamine (GalNAc) as the 5th and 6th sugar residues respectively. The putative L-fucose is expected to be synthesized as GDP-L-fucose involving the enzymes Gmd...

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