You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version3.6
Creation Date2007-04-12 20:38:27 UTC
Update Date2016-02-11 01:07:21 UTC
HMDB IDHMDB06029
Secondary Accession NumbersNone
Metabolite Identification
Common NameN-Acetylglutamine
DescriptionN-Acetylglutamine (GIcNAc) is a modified amino acid (an acetylated analogue of glutamine), a metabolite present in normal human urine. The decomposition products of GIcNAc have been identified by NMR and HPLC-MS as N-acetyl-L-glutamic acid, N-(2,6-dioxo-3-piperidinyl) acetamide, pyroglutamic acid, glutamic acid, and glutamine. GIcNAc is used for parenteral nutrition as a source of glutamine, since glutamine is too unstable, but GIcNAc is very stable. In patients treated with aminoglycosides and/or glycopeptides, elevation GIcNAc in urine suggests renal tubular injury. High amounts of N-acetylated amino acids (i.e.: N-Acetylglutamine) were detected patient with aminoacylase I deficiency (EC 3.5.1.14, a homodimeric zinc-binding metalloenzyme located in the cytosol), a novel inborn error of metabolism. (PMID: 15331932 , 11312773 , 7952062 , 2569664 , 16274666 ).
Structure
Thumb
Synonyms
ValueSource
AceglutamideChEBI
AcetylglutamineChEBI
GlcNAcChEBI
N-AcetylglutamineChEBI
AceglutamidHMDB
alpha-N-Acetyl-L-glutamineHMDB
L-2-Acetamidoglutaramic acidHMDB
L-N2-Acetyl-glutamineHMDB
N-Acetyl-L-glutamineHMDB
N2-Acetyl-L-glutamineHMDB
N2-AcetylglutamineHMDB
Chemical FormulaC7H12N2O4
Average Molecular Weight188.1812
Monoisotopic Molecular Weight188.079706882
IUPAC Name4-carbamoyl-2-acetamidobutanoic acid
Traditional NameN-acetyl-L-glutamine
CAS Registry Number2490-97-3
SMILES
CC(=O)NC(CCC(N)=O)C(O)=O
InChI Identifier
InChI=1S/C7H12N2O4/c1-4(10)9-5(7(12)13)2-3-6(8)11/h5H,2-3H2,1H3,(H2,8,11)(H,9,10)(H,12,13)
InChI KeyInChIKey=KSMRODHGGIIXDV-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as n-acyl-aliphatic-alpha amino acids. These are alpha amino acids carrying a N-acylated aliphatic chain.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-acyl-aliphatic-alpha amino acids
Alternative Parents
Substituents
  • N-acyl-aliphatic-alpha amino acid
  • Amino fatty acid
  • Fatty acyl
  • Fatty acid
  • Fatty amide
  • Acetamide
  • Secondary carboxylic acid amide
  • Primary carboxylic acid amide
  • Carboxamide group
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid amide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
Biofunction
  • Protein synthesis, amino acid biosynthesis
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point197 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility21.9 mg/mLALOGPS
logP-2.2ALOGPS
logP-1.9ChemAxon
logS-0.93ALOGPS
pKa (Strongest Acidic)3.76ChemAxon
pKa (Strongest Basic)-0.75ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area109.49 Å2ChemAxon
Rotatable Bond Count5ChemAxon
Refractivity42.55 m3·mol-1ChemAxon
Polarizability17.66 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Biological Properties
Cellular LocationsNot Available
Biofluid Locations
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)BothNormal details
UrineDetected and Quantified18.557 +/- 7.493 umol/mmol creatinineChildren (1 - 13 years old)Not Specified
Normal
    • Mordechai, Hien, ...
details
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)BothNormal details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)FemaleEpithelial ovarian cancer details
UrineDetected and Quantified36.587 +/- 55.035 umol/mmol creatinineChildren (1 - 13 years old)Not Specified
Eosinophilic esophagitis
    • Mordechai, Hien, ...
details
UrineDetected but not QuantifiedNot ApplicableAdult (>18 years old)BothAutosomal dominant polycystic kidney disease (ADPKD) details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB023808
KNApSAcK IDNot Available
Chemspider ID23836
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB06029
Metagene LinkHMDB06029
METLIN IDNot Available
PubChem Compound25561
PDB IDNot Available
ChEBI IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Van Coster RN, Gerlo EA, Giardina TG, Engelke UF, Smet JE, De Praeter CM, Meersschaut VA, De Meirleir LJ, Seneca SH, Devreese B, Leroy JG, Herga S, Perrier JP, Wevers RA, Lissens W: Aminoacylase I deficiency: a novel inborn error of metabolism. Biochem Biophys Res Commun. 2005 Dec 23;338(3):1322-6. Epub 2005 Nov 2. [16274666 ]
  2. Sugahara K, Zhang J, Kodama H: Liquid chromatographic-mass spectrometric analysis of N-acetylamino acids in human urine. J Chromatogr B Biomed Appl. 1994 Jul 1;657(1):15-21. [7952062 ]
  3. Magnusson I, Kihlberg R, Alvestrand A, Wernerman J, Ekman L, Wahren J: Utilization of intravenously administered N-acetyl-L-glutamine in humans. Metabolism. 1989 Aug;38(8 Suppl 1):82-8. [2569664 ]
  4. Bergana MM, Holton JD, Reyzer IL, Snowden MK, Baxter JH, Pound VL: NMR and MS analysis of decomposition compounds produced from N-acetyl-L-glutamine at low pH. J Agric Food Chem. 2000 Dec;48(12):6003-10. [11312773 ]
  5. Racine SX, Le Toumelin P, Adnet F, Cohen Y, Cupa M, Hantz E, Le Moyec L: N-acetyl functions and acetate detected by nuclear magnetic resonance spectroscopy of urine to detect renal dysfunction following aminoglycoside and/or glycopeptide antibiotic therapy. Nephron Physiol. 2004;97(4):p53-7. [15331932 ]

Enzymes

General function:
Involved in metallopeptidase activity
Specific function:
Involved in the hydrolysis of N-acylated or N-acetylated amino acids (except L-aspartate).
Gene Name:
ACY1
Uniprot ID:
Q03154
Molecular weight:
45884.705