|Systematic (IUPAC) name|
Fucose is a hexose deoxy sugar with the chemical formula C6H12O5. It is found on N-linked glycans on the mammalian, insect and plant cell surface, and is the fundamental sub-unit of the fucoidan polysaccharide. Alpha1→3 linked core fucose is a suspected carbohydrate antigen for IgE-mediated allergy.
Two structural features distinguish fucose from other six-carbon sugars present in mammals: the lack of a hydroxyl group on the carbon at the 6-position (C-6) and the L-configuration. It is equivalent to 6-deoxy-L-galactose.
In the fucose-containing glycan structures, fucosylated glycans, fucose can exist as a terminal modification or serve as an attachment point for adding other sugars.
Fucose is metabolized by an enzyme called alpha-fucosidase.
- ↑ File:Free review.png Daniel J. Becker; John B. Lowe (July 2003). "Fucose: biosynthesis and biological function in mammals". Glycobiology 13: 41R–53R. PMID 12651883.
- ↑ Daniel J. Moloney; Robert S. Haltiwanger (July 1999). "The O-linked fucose glycosylation pathway: identification and characterization of a uridine diphosphoglucose: fucose-[beta]1,3-glucosyltransferase activity from Chinese hamster ovary cells". Glycobiology 9: 679–687. PMID 10362837.
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