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Record Information
Version1.0
Creation Date2016-09-30 22:26:41 UTC
Update Date2020-05-11 20:36:12 UTC
MCDB ID BMDB0000206
Secondary Accession Numbers
  • BMDB00206
Metabolite Identification
Common NameN6-Acetyl-L-lysine
DescriptionN6-Acetyl-L-lysine, also known as N(6)-acetyllysine or omega-acetyllsine, belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. N6-Acetyl-L-lysine exists as a solid, possibly soluble (in water), and a very strong basic compound (based on its pKa) molecule. N6-Acetyl-L-lysine exists in all living organisms, ranging from bacteria to humans.
Structure
Thumb
Synonyms
ValueSource
(2S)-6-(Acetylamino)-2-aminohexanoic acidChEBI
N(6)-ACETYLLYSINEChEBI
N(zeta)-AcetyllysineChEBI
N-epsilon-Acetyl-L-lysineChEBI
N-Epsilon-AcetyllysineChEBI
N(epsilon)-Acetyl-L-lysineChEBI
N(zeta)-Acetyl-L-lysineChEBI
(2S)-6-(Acetylamino)-2-aminohexanoateGenerator
N(Z)-AcetyllysineGenerator
N(Ζ)-acetyllysineGenerator
N(Z)-Acetyl-L-lysineGenerator
N(Ζ)-acetyl-L-lysineGenerator
e-Acetyl-L-lysineHMDB
e-N-Acetyl-L-lysineHMDB
e-N-AcetyllysineHMDB
epsilon-Acetyl-L-lysineHMDB
epsilon-N-Acetyl-L-lysineHMDB
epsilon-N-AcetyllysineHMDB
L-e-N-AcetyllysineHMDB
L-epsilon-N-AcetyllysineHMDB
N-e-Acetyl-L-lysineHMDB
N-e-AcetyllysineHMDB
N6-AcetyllysineHMDB
Ne-acetyl-L-lysineHMDB
Ne-acetyllysineHMDB
Omega-N-acetyl-L-lysineHMDB
W-N-Acetyl-L-lysineHMDB
N(6)-AcetyllsineHMDB
Omega-acetyllsineHMDB
(2S)-6-Acetamido-2-aminohexanoic acidHMDB
6-Acetamido-2-aminohexanoic acidHMDB
L-Ε-N-acetyllysineHMDB
Nepsilon-acetyl-L-lysineHMDB
Nepsilon-acetyllysineHMDB
Nε-acetyl-L-lysineHMDB
Nε-acetyllysineHMDB
Ε-acetyl-L-lysineHMDB
Ε-N-acetyl-L-lysineHMDB
Ε-N-acetyllysineHMDB
Ω-N-acetyl-L-lysineHMDB
N6-Acetyl-L-lysineChEBI
Chemical FormulaC8H16N2O3
Average Molecular Weight188.2242
Monoisotopic Molecular Weight188.116092388
IUPAC Name(2S)-2-amino-6-acetamidohexanoic acid
Traditional NameN6-acetyllysine
CAS Registry Number692-04-6
SMILES
CC(=O)NCCCC[C@H](N)C(O)=O
InChI Identifier
InChI=1S/C8H16N2O3/c1-6(11)10-5-3-2-4-7(9)8(12)13/h7H,2-5,9H2,1H3,(H,10,11)(H,12,13)/t7-/m0/s1
InChI KeyDTERQYGMUDWYAZ-ZETCQYMHSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
Substituents
  • L-alpha-amino acid
  • Medium-chain fatty acid
  • Amino fatty acid
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Carboximidic acid
  • Carboximidic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Propargyl-type 1,3-dipolar organic compound
  • Organic 1,3-dipolar compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Primary aliphatic amine
  • Organic nitrogen compound
  • Organic oxygen compound
  • Amine
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point250 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-2.6ALOGPS
logP-3.2ChemAxon
logS-1ALOGPS
pKa (Strongest Acidic)2.43ChemAxon
pKa (Strongest Basic)9.53ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area92.42 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity47.25 m³·mol⁻¹ChemAxon
Polarizability20.29 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Concentrations
StatusValueReferenceDetails
Detected but not QuantifiedNot Applicable details
Detected but not QuantifiedNot Applicable details
HMDB IDHMDB0000206
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB000476
KNApSAcK IDNot Available
Chemspider ID83801
KEGG Compound IDC02727
BioCyc IDCPD-567
BiGG IDNot Available
Wikipedia LinkAcetyllysine
METLIN ID5216
PubChem Compound92832
PDB IDNot Available
ChEBI ID17752
References
Synthesis ReferenceBenoiton, Leo; Leclerc, Jean. An improved synthesis of e-N-acetyl-L-lysine and similar compounds. Canadian Journal of Chemistry (1965), 43(4), 991-3.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Hagi T, Kobayashi M, Nomura M: Metabolome analysis of milk fermented by gamma-aminobutyric acid-producing Lactococcus lactis. J Dairy Sci. 2016 Feb;99(2):994-1001. doi: 10.3168/jds.2015-9945. Epub 2015 Dec 10. [PubMed:26686724 ]
  2. Mung D, Li L: Applying quantitative metabolomics based on chemical isotope labeling LC-MS for detecting potential milk adulterant in human milk. Anal Chim Acta. 2018 Feb 25;1001:78-85. doi: 10.1016/j.aca.2017.11.019. Epub 2017 Nov 14. [PubMed:29291809 ]