Ribulose
Appearance
| |||
Names | |||
---|---|---|---|
IUPAC name
(3R,4R)-1,3,4,5-Tetrahydroxypentan-2-one
| |||
Other names
d-erythro-2-Pentulose
Adonose Arabinulose Araboketose Ribosone | |||
Identifiers | |||
3D model (JSmol)
|
| ||
ChEBI |
| ||
ChemSpider | |||
KEGG | |||
PubChem CID
|
|||
UNII |
| ||
| |||
| |||
Properties | |||
C5H10O5 | |||
Molar mass | 150.130 g·mol−1 | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Ribulose is a ketopentose — a monosaccharide containing five carbon atoms, and including a ketone functional group. It has chemical formula Template:Carbon5Template:Hydrogen10Template:Oxygen5. Two enantiomers are possible, d-ribulose (d-erythro-pentulose) and l-ribulose (l-erythro-pentulose). d-Ribulose is the diastereomer of d-xylulose.
Ribulose sugars are composed in the pentose phosphate pathway from arabinose.[1] They are important in the formation of many bioactive substances. For example, d-ribulose is an intermediate in the fungal pathway for d-arabitol production. Also, as the 1,5-bisphosphate, d-ribulose combines with carbon dioxide at the start of the photosynthesis process in green plants (carbon dioxide trap).[2]
References
- ^ Guo, Zongren; Long, Liangkun; Ding, Shaojun (2020). "Characterization of an L-Arabinose Isomerase from Bacillus velezensis and Its Application for L-Ribulose and L-Ribose Biosynthesis". Applied Biochemistry and Biotechnology. doi:10.1007/s12010-020-03380-0. PMID 32617845. S2CID 220296031.
- ^ Spreitzer, Robert J.; Salvucci, Michael E. (2002). "RUBISCO: Structure, Regulatory Interactions, and Possibilities for a Better Enzyme". Annual Review of Plant Biology. 53: 449–475. doi:10.1146/annurev.arplant.53.100301.135233. PMID 12221984.