Ribose-5-phosphate
- Ribose-5-phosphate
-
Ribose-5-phosphate |
|


Structure du D-ribose-5-phosphate
(en bas : projections de Fischer et de Haworth) |
Général |
Nom IUPAC |
[(2R,3R,4R)-2,3,4-trihydroxy-5-oxopentyl]dihydrogénophosphate |
No CAS |
3615-55-2 |
PubChem |
77982 |
ChEBI |
17797 |
SMILES |
|
InChI |
InChI : Vue 3D
InChI= 1/ C5H11O8P/ c6- 1- 3( 7) 5( 9) 4( 8) 2- 13- 14( 10, 11) 12/ h1, 3- 5, 7- 9H, 2H2,( H2, 10, 11, 12)/ t3-, 4+, 5-/ m0/ s1/ f/ h10- 11H
InChIKey :
PPQRONHOSHZGFQ- UYXRDBCVDR
Std. InChI : Vue 3D
InChI= 1S/ C5H11O8P/ c6- 1- 3( 7) 5( 9) 4( 8) 2- 13- 14( 10, 11) 12/ h1, 3- 5, 7- 9H, 2H2,( H2, 10, 11, 12)/ t3-, 4+, 5-/ m0/ s1
Std. InChIKey :
PPQRONHOSHZGFQ- LMVFSUKVSA- N
|
Propriétés chimiques |
Formule brute |
C5H11O8P [Isomères]
|
Masse molaire[1] |
230,1098 ± 0,0072 g·mol-1
C 26,1 %, H 4,82 %, O 55,62 %, P 13,46 %,
|
Unités du SI & CNTP, sauf indication contraire.
|
Le ribose-5-phosphate est un métabolite de la voie des pentoses phosphates issu de l'isomérisation du ribulose-5-phosphate, produit à la dernière étape de cette voie métabolique. Le ribulose-5-phosphate peut subir différentes isomérisations, transaldolisations et transcétolisations afin de produire d'autres pentoses phosphates ainsi que du fructose-6-phosphate et du glycéraldéhyde-3-phosphate, deux intermédiaires de la glycolyse.
La ribose-phosphate diphosphokinase convertit le ribose-5-phosphate en phosphoribosylpyrophosphate (PRPP), précurseur activé pour la synthèse des nucléotides, tels que l'AMP.
Notes et références
Wikimedia Foundation.
2010.
Contenu soumis à la licence CC-BY-SA. Source : Article Ribose-5-phosphate de Wikipédia en français (auteurs)
Regardez d'autres dictionnaires:
Ribose 5-phosphate — IUPAC name (2,3,4 Trihydroxy 5 oxo pentoxy)phosphonic acid … Wikipedia
ribose-5-phosphate — Ribose phosphorylated on carbon 5; an intermediate in the pentose phosphate pathway. ribose 5 phosphate isomerase an enzyme catalyzing interconversion of d ribose 5 phosphate and d ribulose 5 phosphate; of importance in ribose metabolism and in… … Medical dictionary
Ribose-5-phosphate isomerase — In enzymology, a ribose 5 phosphate isomerase (EC number|5.3.1.6) is an enzyme that catalyzes the chemical reaction:D ribose 5 phosphate ightleftharpoons D ribulose 5 phosphateHence, this enzyme has one substrate, D ribose 5 phosphate, and one… … Wikipedia
Ribose-5-phosphate-ammonia ligase — In enzymology, a ribose 5 phosphate ammonia ligase (EC number|6.3.4.7) is an enzyme that catalyzes the chemical reaction:ATP + ribose 5 phosphate + NH3 ightleftharpoons ADP + phosphate + 5 phosphoribosylamineThe 3 substrates of this enzyme are… … Wikipedia
Ribose-5-phosphate adenylyltransferase — In enzymology, a ribose 5 phosphate adenylyltransferase (EC number|2.7.7.35) is an enzyme that catalyzes the chemical reaction:ADP + D ribose 5 phosphate ightleftharpoons phosphate + ADP riboseThus, the two substrates of this enzyme are ADP and D … Wikipedia
ribose-5-phosphate isomerase — ri·bose 5 phos·phate isom·er·ase (riґbōs fosґfāt i somґər ās) [EC 5.3.1.6] an enzyme of the isomerase class that catalyzes the interconversion of ribulose 5 phosphate and ribose 5 phosphate. The reaction is part of the pentose … Medical dictionary
ribose 5-phosphate — a phosphorylated form of ribose occurring as an intermediate in the pentose phosphate pathway and in the synthesis of nucleotides … Medical dictionary
Acetoin-ribose-5-phosphate transaldolase — In enzymology, an acetoin ribose 5 phosphate transaldolase (EC number|2.2.1.4) is an enzyme that catalyzes the chemical reaction:3 hydroxybutan 2 one + D ribose 5 phosphate ightleftharpoons acetaldehyde + 1 deoxy D altro heptulose 7 phosphateThus … Wikipedia
Ribose — Structure du D ribose et du L ribose Général Nom IUPAC (2R,3S,4R) 5 (Hydroxymethyl) tetrahydrofuran … Wikipédia en Français
Ribose-5-phosphat-Isomerase — Masse/Länge Primärstruktur 311 Aminosäuren … Deutsch Wikipedia