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| Section2 = }} 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. α(1→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.〔 〕 In human ''N''-linked glycans, fucose is most commonly linked α-1,6 to the reducing terminal β-''N''-acetylglucosamine. However, fucose at the non-reducing termini linked α-1,2 to galactose forms the H antigen, the substructure of the A and B blood group antigens. Fucose is released from fucose-containing polymers by an enzyme called α-fucosidase. L-Fucose is claimed to have application in cosmetics, pharmaceuticals, and dietary supplements. == See also == * Fucitol * Verotoxin-producing ''Escherichia coli'' * Digitalose, the methyl ether of D-fucose 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Fucose」の詳細全文を読む スポンサード リンク
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