Xylulose

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Fischer projection of L-xylulose
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Fischer projection of L-xylulose

Xylulose is a ketopentose — a monosaccharide containing five carbon atoms, and including a ketone functional group. It has chemical formula C5H10O5. In nature it occurs in the L- and D- isomers.

L-xylulose accumulates in the urine of pentosuria patients. Since L-xylulose is a reducing sugar like D-glucose, pentosuria patients have been wrongly diagnosed in the past to be diabetic.

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Carbohydrates
General: Aldose | Ketose | Pyranose | Furanose
Geometry: Pentose | Hexose | Heptose | Equatorial bond | Axial bond | Anomer | Mutarotation
Small/Large: Glyceraldehyde | Dihydroxyacetone | Erythrose | Threose | Erythrulose | Sedoheptulose
Pentoses: Ribose | Arabinose | Xylose | Lyxose | Ribulose | Xylulose
Hexoses: Glucose | Galactose | Mannose | Gulose | Idose | Talose | Allose | Altrose | Fructose | Sorbose | Tagatose | Psicose | Fucose | Rhamnose
Disaccharides: Sucrose | Lactose | Trehalose | Maltose
Polymers: Glycogen | Starch | Cellulose | Chitin | Amylose | Amylopectin | Stachyose | Inulin | Dextrin
Glycosaminoglycans: Heparin | Chondroitin sulfate | Hyaluronan | Heparan sulfate | Dermatan sulfate | Keratan sulfate
Aminoglycosides: Kanamycin | Streptomycin | Tobramycin | Neomycin | Paromomycin | Apramycin | Gentamicin | Netilmicin | Amikacin
←Nucleic acids Major families of biochemicals Lipids→
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