CAS number 488-84-6, (D)
2042027-5 (L)
5556-48-9 (DL)
PubChem 151261
Jmol-3D images Image 1
Molecular formula C5H10O5
Molar mass 150.13 g mol−1
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Ribulose is a ketopentose — a monosaccharide containing five carbon atoms, and including a ketone functional group. It has chemical formula C5H10O5. 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. 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).

A synthetic form of ribulose known as sucroribulose is found in many brands of artificial sweeteners.

See also

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Look at other dictionaries:

  • Ribulose — Général Nom IUPAC D érythro 2 pentulose L érythro 2 pentulose Synonymes Ara …   Wikipédia en Français

  • Ribulose — Strukturformel Fischer Projektion, offenkettige Darstellung Allgemeines …   Deutsch Wikipedia

  • Ribulose — Ri|bu|lo|se [↑ Ribose u. ↑ ulose], die; ; Symbol: Rul; systematisches Syn.: D erythro Pent 2 ulose: mit Ribose isomere Pentulose, deren im ↑ Pentosephosphatweg der grünen Pflanzen gebildetes 1,5 Bisphosphat, mit Ribulose 1,5 bisphosphat… …   Universal-Lexikon

  • ribulose — ribuliozė statusas T sritis chemija apibrėžtis Aldopentozė. formulė C₅H₁₀O₅ atitikmenys: angl. ribulose rus. рибулоза …   Chemijos terminų aiškinamasis žodynas

  • ribulose — noun a ketopentose whose phosphate derivatives participate in photosynthesis …   Wiktionary

  • ribulose — The 2 keto isomer of ribose. As the 5 phosphate, it participates in the pentose monophosphate shunt; as the 1,5 bisphosphate, it combines with CO2 at the start of the photosynthetic process in green plants (“carbon dioxide trap”); d r. is the… …   Medical dictionary

  • Ribulose — Ri|bu|lo|se die; , n Kunstw.; vgl. 2↑...ose> Monosaccharid der ↑Pentosen, das bei der Photosynthese eine wichtige Rolle spielt (Chem.) …   Das große Fremdwörterbuch

  • ribulose — [ rʌɪbjʊləʊz, s] noun Chemistry a sugar of the pentose class which is an important intermediate in carbohydrate metabolism and photosynthesis. Origin 1930s: from ribose + ulose …   English new terms dictionary

  • ribulose — ri·bu·lose …   English syllables

  • ribulose — A keto pentose sugar (C5H11O5) involved in the carbon dioxide fixation pathway of photosynthesis …   Glossary of Biotechnology

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