Compound

phosphoethanolamine

An organophosphate oxoanion that is the conjugate base of O-phosphoethanolamine arising from deprotonation of the phosphate OH groups and protonation of the amino group; major species at pH 7.3.

Definition from ChEBI (CHEBI:58190), read 2026-09-23. CC BY 4.0.

CHEBI:58190ChEBI

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Structure

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

Class: Organic compound, anion
Formula: C2H7NO4P
Mass: 140.055 g/mol
Charge: -1
InChIKey: SUHOOTKUPISOBE-UHFFFAOYSA-M
SMILES: [NH3+]CCOP(=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

14 statements

14 statements · 1 reference database · Subject: phosphoethanolamine · Sources: Rhea

Order

acetaldehyde is converted to phosphoethanolamineCompoundRhea RHEA:17889Inferred only
phosphoethanolamine is converted to acetaldehydeCompoundRhea RHEA:17889Inferred only
CDP-ethanolamine is converted to phosphoethanolamineCompoundRhea RHEA:86791Inferred only
phosphoethanolamine is converted to CDP-ethanolamineCompoundRhea RHEA:24592Inferred only
phosphoethanolamine is converted to CDP-ethanolamineCompoundRhea RHEA:86791Inferred only
ethanolamine is converted to phosphoethanolamineCompoundRhea RHEA:13069Inferred only
phosphoethanolamine is converted to ethanolamineCompoundRhea RHEA:16089Inferred only
phosphoethanolamine is converted to phosphocholineCompoundRhea RHEA:32291Inferred only
phosphocholine is converted to phosphoethanolamineCompoundRhea RHEA:32291Inferred only
phosphoethanolamine is a substrate of ADPRMProteinRhea RHEA:86791Inferred only
phosphoethanolamine is a substrate of ALPLProteinRhea RHEA:16089Inferred only
phosphoethanolamine is a substrate of ETNPPLProteinRhea RHEA:17889Inferred only

Show the remaining 2

phosphoethanolamine is a substrate of PCYT2ProteinRhea RHEA:24592Inferred only
phosphoethanolamine is a substrate of PHOSPHO1ProteinRhea RHEA:16089Inferred only

Reactions

24 reactions

ethanolamine+ATP(4-)phosphoethanolamine+ADP(3-)+hydron
Catalysed by CHKA or ETNK1 or ETNK2 or CHKB
Reaction pageLeft to rightBalanced
Rhea RHEA:13069CC BY 4.0Reference data
phosphoethanolamine+waterethanolamine+hydrogenphosphate
Catalysed by ALPL or PHOSPHO1
Reaction pageLeft to rightBalanced
Rhea RHEA:16089CC BY 4.0Reference data
CHEBI:57804+waterphosphoethanolamine+L-seryl residue+hydron
Reaction pageDirection not assertedBalanced
Rhea RHEA:17113CC BY 4.0Reference data
phosphoethanolamine+wateracetaldehyde+ammonium+hydrogenphosphate
Catalysed by ETNPPL
Reaction pageDirection not assertedBalanced
Rhea RHEA:17889CC BY 4.0Reference data
sphinganine 1-phosphatehexadecanal+phosphoethanolamine
Catalysed by SGPL1
Reaction pageLeft to rightBalanced
Rhea RHEA:18593CC BY 4.0Reference data
phosphoethanolamine+S-adenosyl-L-methionineCHEBI:57781+S-adenosyl-L-homocysteine+hydron
Reaction pageDirection not assertedBalanced
Rhea RHEA:20365CC BY 4.0Reference data
phosphoethanolamine+CTP+hydronCDP-ethanolamine+diphosphate(3-)
Catalysed by PCYT2
Reaction pageLeft to rightBalanced
Rhea RHEA:24592CC BY 4.0Reference data
phosphoethanolamine+3S-adenosyl-L-methioninephosphocholine+3S-adenosyl-L-homocysteine+3hydron
Reaction pageDirection not assertedBalanced
Rhea RHEA:32291CC BY 4.0Reference data
sphing-4-enine 1-phosphate(2E)-hexadecenal+phosphoethanolamine
Catalysed by SGPL1
Reaction pageLeft to rightBalanced
Rhea RHEA:33507CC BY 4.0Reference data
CHEBI:64884CHEBI:65084+phosphoethanolamine
Reaction pageDirection not assertedBalanced
Rhea RHEA:33715CC BY 4.0Reference data
CHEBI:70991CHEBI:70995+phosphoethanolamine
Reaction pageDirection not assertedBalanced
Rhea RHEA:34719CC BY 4.0Reference data
CHEBI:71030CHEBI:71034+phosphoethanolamine
Reaction pageDirection not assertedBalanced
Rhea RHEA:34743CC BY 4.0Reference data

Show the remaining 12

Other names

3 names

Resolves to: phosphoethanolamine

Also called: 2-ammonioethyl phosphateO-phosphonatoethanaminium
Systematic name: 2-azaniumylethyl phosphate