Compound

beta-alanyl-L-lysine

A peptide cation that is the conjugate acid of β-alanyl-L-lysine zwitterion, arising from the protonation of one of the amino groups. Major species at pH 7.3.

Definition from ChEBI (CHEBI:143161), read 2026-09-23. CC BY 4.0.

CHEBI:143161ChEBI

Open in the graph

Structure

2D depiction · 3D model shown

Loading the model…

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

Class: Organic compound, cation
Formula: C9H20N3O3
Mass: 218.277 g/mol
Charge: +1
InChIKey: PLDCWKCPEXNWJH-ZETCQYMHSA-O
SMILES: [NH3+]CCCC[C@H](NC(=O)CC[NH3+])C(=O)[O-]
Look it up: ChEBI PubChem By InChIKey

Identity from ChEBI, geometry from PubChem. Not evidence.

What the reference databases state

Statements

1 statement

1 statement · 1 reference database · Subject: beta-alanyl-L-lysine · Sources: Rhea

Order

beta-alanyl-L-lysine is a substrate of PM20D2ProteinRhea RHEA:59608Inferred only

Reactions

2 reactions

beta-alanine+L-lysine+ATP(4-)beta-alanyl-L-lysine+ADP(3-)+hydrogenphosphate+hydron
Reaction pageDirection not assertedBalanced
Rhea RHEA:59584CC BY 4.0Reference data
beta-alanyl-L-lysine+waterbeta-alanine+L-lysine
Catalysed by PM20D2
Reaction pageLeft to rightBalanced
Rhea RHEA:59608CC BY 4.0Reference data

Other names

5 names

Resolves to: beta-alanyl-L-lysine

Also called: beta-Ala-L-LysbetaAla-Lysβ-Ala-L-LysβAla-Lys
Systematic name: (2S)-6-azaniumyl-2-(3-azaniumylpropanamido)hexanoate