Showing Metabocard for D-xylulose (BASm0000856)
| Common Name | D-xylulose |
|---|---|
| Description | D-Xylulose (CAS: 551-84-8) is a monosaccharide containing five carbon atoms. D-Xylulose is converted from xylitol by the enzyme NAD+-linked xylitol dehydrogenase (EC 1.1.1.9) in the glucuronate pathway, the most important xylitol-handling metabolic pathway in mammals. This activity has been described in human erythrocytes. Most likely, D-xylulose (as well as D-arabinose or D-ribulose) is a precursor of the pentiol D-arabitol, since pentitols are derived from their corresponding pentose phosphate precursors via pentoses. This pathway can play a role in inherited metabolic disorders underlying the accumulation of pentitols (e.g. ribose 5-phosphate isomerase deficiency and transaldolase deficiency). Although pentitols are present in all living organisms, knowledge concerning their metabolism is limited (PMID:15234337 , Mol Genet Metab. 2004 Jul;82(3):231-7.). |
| Structure | |
| Molecular Formula | C5H10O5 |
| Average Mass | 150.12990 |
| Monoisotopic Mass | 150.05282 |
| IUPAC Name | (3S,4R)-1,3,4,5-tetrahydroxypentan-2-one |
| Traditional Name | D-xylulose |
| CAS Registry Number | 20750-28-1 |
| SMILES | O=C(CO)[C@@H](O)[C@H](O)CO |
| InChI Identifier | InChI=1S/C5H10O5/c6-2-5(9)4(8)3(7)1-10-5/h3-4,6-9H,1-2H2/t3-,4+,5-/m1/s1 |
| InChI Key | LQXVFWRQNMEDEE-MROZADKFSA-N |
| CHEBI ID | CHEBI:17140 |
| HMDB ID | HMDB0001644 |
| State | Not Available |
| Water Solubility | 6.78e+02 g/l |
| logP | -2.16 |
| logS | 0.65 |
| pKa (Strongest Acidic) | 10.57 |
| pKa (Strongest Basic) | -2.98 |
| Hydrogen Acceptor Count | 5 |
| Hydrogen Donor Count | 4 |
| Polar Surface Area | 97.99 Ų |
| Rotatable Bond Count | 4 |
| Physiological Charge | 0 |
| Formal Charge | 0 |
| Refractivity | 31.60 m³·mol⁻¹ |
| Polarizability | 13.54 |