L-fucose isomerase
Template:Infobox enzyme Template:Infobox protein family Template:Infobox protein family Template:Infobox protein family In enzymology, a L-fucose isomerase (Template:EnzExplorer) is an enzyme that catalyzes the chemical reaction
- L-fucose L-fuculose
Hence, this enzyme has one substrate, L-fucose, and one product, L-fuculose.
This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is L-fucose aldose-ketose-isomerase. This enzyme participates in fructose and mannose metabolism.
The enzyme is a hexamer, forming the largest structurally known ketol isomerase, and has no sequence or structural similarity with other ketol isomerases. The structure was determined by X-ray crystallography at 2.5 Angstrom resolution.[1] Each subunit of the hexameric enzyme is wedge-shaped and composed of three domains. Both domains 1 and 2 contain central parallel beta- sheets with surrounding alpha helices. The active centre is shared between pairs of subunits related along the molecular three-fold axis, with domains 2 and 3 from one subunit providing most of the substrate-contacting residues.[1]
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Further reading
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