Compound

D-xylulose 5-phosphate

An organophosphate oxoanion that is the dianion of D-xylulose 5-phosphate arising from deprotonation of the phosphate OH groups; major species at pH 7.3.

Definition from ChEBI (CHEBI:57737), read 2026-09-23. CC BY 4.0.

CHEBI:57737ChEBI

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Structure

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A generated conformer of D-xylulose 5-phosphate — one low-energy arrangement PubChem computed, not a measured structure. Hydrogens are not drawn; the formula counts them.

Class: Organic compound, anion
Formula: C5H9O8P
Mass: 228.093 g/mol
Charge: -2
InChIKey: FNZLKVNUWIIPSJ-RFZPGFLSSA-L
SMILES: O=C(CO)[C@@H](O)[C@H](O)COP(=O)([O-])[O-]
Look it up: ChEBI PubChem By InChIKey

Identity from ChEBI, geometry from PubChem. Not evidence.

What it touches on the way

Mechanistic reach

5 entities

5 entities reached.

0 reported hops5 assembled from the scaffold

What the reference databases state

Statements

10 statements

10 statements · 1 reference database · Subject: D-xylulose 5-phosphate · Sources: Rhea

Order

D-xylulose 5-phosphate is converted to D-ribulose 5-phosphateCompoundRhea RHEA:13677Inferred only
D-ribulose 5-phosphate is converted to D-xylulose 5-phosphateCompoundRhea RHEA:13677Inferred only
D-xylulose 5-phosphate is converted to D-xyluloseCompoundRhea RHEA:10964Inferred only
D-xylulose is converted to D-xylulose 5-phosphateCompoundRhea RHEA:10964Inferred only
D-xylulose 5-phosphate is a substrate of RPEProteinRhea RHEA:13677Inferred only
D-xylulose 5-phosphate is a substrate of RPEL1ProteinRhea RHEA:13677Inferred only
D-xylulose 5-phosphate is a substrate of TKTProteinRhea RHEA:10508Inferred only
D-xylulose 5-phosphate is a substrate of TKTL1ProteinRhea RHEA:10508Inferred only
D-xylulose 5-phosphate is a substrate of TKTL2ProteinRhea RHEA:10508Inferred only
D-xylulose 5-phosphate is a substrate of XYLBProteinRhea RHEA:10964Inferred only

Reactions

14 reactions

D-xylulose 5-phosphate+hydrogenphosphateCHEBI:22191+D-glyceraldehyde 3-phosphate+water
Reaction pageDirection not assertedBalanced
Rhea RHEA:10468CC BY 4.0Reference data
D-sedoheptulose 7-phosphate+D-glyceraldehyde 3-phosphatealdehydo-D-ribose 5-phosphate+D-xylulose 5-phosphate
Catalysed by TKT or TKTL1 or TKTL2
Reaction pageRight to leftBalanced
Rhea RHEA:10508CC BY 4.0Reference data
D-xylulose+ATP(4-)D-xylulose 5-phosphate+ADP(3-)+hydron
Catalysed by XYLB
Reaction pageDirection not assertedBalanced
Rhea RHEA:10964CC BY 4.0Reference data
D-ribulose 5-phosphateD-xylulose 5-phosphate
Catalysed by RPEL1 or RPE
Reaction pageDirection not assertedBalanced
Rhea RHEA:13677CC BY 4.0Reference data
CHEBI:58226D-xylulose 5-phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:22368CC BY 4.0Reference data
D-xylulose 5-phosphate+formaldehydedihydroxyacetone+D-glyceraldehyde 3-phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:24264CC BY 4.0Reference data
CHEBI:58566+NAD(1-)D-xylulose 5-phosphate+NADH(2-)+hydron
Reaction pageDirection not assertedBalanced
Rhea RHEA:26002CC BY 4.0Reference data
D-erythrose 4-phosphate+D-xylulose 5-phosphatebeta-D-fructose 6-phosphate+D-glyceraldehyde 3-phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:27626CC BY 4.0Reference data
CHEBI:138268+waterD-xylulose 5-phosphate+hydrogenphosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:54548CC BY 4.0Reference data
CHEBI:141351+D-glyceraldehyde 3-phosphateD-xylulose 5-phosphate+dihydroxyacetone phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:57024CC BY 4.0Reference data
CHEBI:77133+D-glyceraldehyde 3-phosphateCHEBI:189857+D-xylulose 5-phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:70803CC BY 4.0Reference data
CHEBI:190015+D-glyceraldehyde 3-phosphateCHEBI:58246+D-xylulose 5-phosphate
Reaction pageDirection not assertedBalanced
Rhea RHEA:70811CC BY 4.0Reference data

Show the remaining 2

Other names

4 names

Resolves to: D-xylulose 5-phosphate

Also called: 5-O-phosphonato-D-threo-pentos-2-ulose5-O-phosphonato-D-xyluloseD-xylulose 5-phosphate dianion
Systematic name: D-threo-pentos-2-ulose 5-phosphate