xylulose

(redirected from D-xylulose)

xylulose

 [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).

xy·lu·lose

(zī'lū-lōs),
threo-Pentulose; a 2-ketopentose. l-Xylulose appears in the urine in cases of essential pentosuria; it is also an intermediate in the glucuronate pathway.
Synonym(s): xyloketose

xylulose

/xy·lu·lose/ (zi´lu-lōs) a pentose epimeric with ribulose, occurring naturally as both l- and d-isomers. The latter is excreted in the urine in essential pentosuria; the former, in phosphorylated form, is an intermediate in the pentose phosphate pathway.

xy·lu·lose

(zī'lyū-lōs)
Threo-pentulose; a ketopentose that appears in the urine in cases of essential pentosuria; it is also an intermediate in the glucuronate pathway.
Xyluloseclick for a larger image
Fig. 317 Xylulose . Molecular structure of D-xylulose.

xylulose

a 5-CARBON KETOSE sugar.

xy·lu·lose

(zī'lyū-lōs)
A 2-ketopentose that appears in urine in patients with essential pentosuria; it is also an intermediate in the glucuronate pathway.

xylulose (zil´yəlōs),

n a substance that appears in the urine of patients with essential pentosuria; its presence is diagnostic.

xylulose

a pentose sugar occurring as d-xylulose and as l-xylulose, one of the few l-sugars found in nature; it is sometimes excreted in the urine. See also pentosuria.
References in periodicals archive ?
The following sugar phosphates were purchased from Sigma-Aldrich: DHAP, D-erythrose 4-phosphate (ery-4P), D-fructose 6-phosphate (fru-6P), D,L-glyceraldehyde 3-phosphate (gly-3P), D-ribose 5-phosphate (ribo-5P), D-ribulose 5-phosphate (ribu-5P), D-sedoheptulose 7-phosphate (sed-7P), and D-xylulose 5-phosphate (xylu-5P).
3] Nonstandard abbreviations: glu-6P, d-glucose 6-phosphate; PPP, pentose phosphate pathway; TALDO, transaldolase; LC-MS/MS, liquid chromatography with tandem mass spectrometry; DHAP, dihydroxyacetone phosphate; ery-4P, D-erythrose 4-phosphate; fru-6P, D-fructose 6-phosphate; gly-3P, D,l-glyceraldehyde 3-phosphate; ribo-5P, d-ribose 5-phosphate; ribu-5P, d-ribulose 5-phosphate; sed-7P, D-sedoheptulose 7-phosphate; xylu-5P, D-xylulose 5-phosphate; ACN, acetonitrile; IS, internal standard; and MRM, multiple reaction monitoring (mode).