Xylulose is a ketopentose, a monosaccharide containing five carbon atoms, and including a ketone functional group. It has the chemical formula {carbon}5{hydrogen}10{oxygen}5. In nature, it occurs in both the L- and D-enantiomers. == Pathology == L-Xylulose accumulates in the urine in patients with pentosuria, due to a deficiency in L-xylulose redu...
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<biochemistry> A 5 carbon ketose sugar, whose 5 phosphate is an intermediate in the pentose phosphate pathway and the Calvin cycle. ... (18 Nov 1997) ...
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(zi´lu-lōs) a pentose sugar occurring as D-xylulose and L-xylulose, one of the few L- sugars found in nature; it is sometimes excreted in the urine (see pentosuria).
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A 5-carbon ketose sugar, whose 5-phosphate is an intermediate in the pentose phosphate pathway and the Calvin-Benson cycle.
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Type: Term Pronunciation: zī′lū-lōs Definitions: 1. a 2-ketopentose. l-Xylulose appears in the urine in cases of essential pentosuria; it is also an intermediate in the glucuronate pathway. Synonyms: xyloketose
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