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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-08-12 20:33:24 UTC
Update Date2021-09-14 15:00:09 UTC
HMDB IDHMDB0003423
Secondary Accession Numbers
  • HMDB03423
Metabolite Identification
Common NameD-Glutamine
DescriptionD-Glutamine, also known as DGN or D glutamine, belongs to the class of organic compounds known as d-alpha-amino acids. These are alpha amino acids which have the D-configuration of the alpha-carbon atom. Supplementation does not appear to be useful in adults or children with Crohn's disease or inflammatory bowel disease, but clinical studies as of 2016 were underpowered. D-Glutamine is a drug. D-Glutamine exists in all living species, ranging from bacteria to humans. D-Glutamine is a potentially toxic compound. Adverse effects of glutamine have been described for people receiving home parenteral nutrition and those with liver-function abnormalities. Glutamine is the most abundant naturally occurring, nonessential amino acid in the human body, and one of the few amino acids that can directly cross the blood-brain barrier. Glutamine can exist in either of two enantiomeric forms, L-glutamine and D-glutamine.
Structure
Thumb
Synonyms
ValueSource
(2R)-2,5-Diamino-5-oxopentanoic acidChEBI
(2R)-2-Amino-4-carbamoylbutanoic acidChEBI
(R)-2,5-Diamino-5-oxopentanoic acidChEBI
D-2-Aminoglutaramic acidChEBI
D-GlutaminChEBI
D-Glutaminsaeure-5-amidChEBI
DGNChEBI
(2R)-2,5-Diamino-5-oxopentanoateGenerator
(2R)-2-Amino-4-carbamoylbutanoateGenerator
(R)-2,5-Diamino-5-oxopentanoateGenerator
D-2-AminoglutaramateGenerator
NutrestoreHMDB
L-GlutamineHMDB
D GlutamineHMDB
L GlutamineHMDB
GlutamineHMDB
Chemical FormulaC5H10N2O3
Average Molecular Weight146.1445
Monoisotopic Molecular Weight146.069142196
IUPAC Name(2R)-2-amino-4-carbamoylbutanoic acid
Traditional NameD-glutamine
CAS Registry Number5959-95-5
SMILES
N[C@H](CCC(N)=O)C(O)=O
InChI Identifier
InChI=1S/C5H10N2O3/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H2,7,8)(H,9,10)/t3-/m1/s1
InChI KeyZDXPYRJPNDTMRX-GSVOUGTGSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as d-alpha-amino acids. These are alpha amino acids which have the D-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentD-alpha-amino acids
Alternative Parents
Substituents
  • D-alpha-amino acid
  • Fatty acid
  • Amino acid
  • Carboximidic acid
  • Carboximidic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Amine
  • Hydrocarbon derivative
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Primary aliphatic amine
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen Locations
  • Saliva
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
SalivaDetected and Quantified11.3 +/- 14.5 uMAdult (>18 years old)Female
Normal
    • Sugimoto et al. (...
details
SalivaDetected and Quantified22.8 +/- 44.0 uMAdult (>18 years old)Female
Normal
    • Sugimoto et al. (...
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB02174
Phenol Explorer Compound IDNot Available
FooDB IDFDB023171
KNApSAcK IDNot Available
Chemspider ID128633
KEGG Compound IDC00819
BioCyc IDGLUTAMIDE
BiGG IDNot Available
Wikipedia LinkGlutamine
METLIN ID6926
PubChem Compound145815
PDB IDNot Available
ChEBI ID17061
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceQian, Shao-Song; Wu, Xiao-Yan; Li, Jia-You; Liu, Yi; Chen, Ran; Jiao, Qing-Cai. Preparation of D-glutamine from glutamic acid. Youji Huaxue (2006), 26(4), 514-517.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Thorsen G, Bergquist J: Chiral separation of amino acids in biological fluids by micellar electrokinetic chromatography with laser-induced fluorescence detection. J Chromatogr B Biomed Sci Appl. 2000 Aug 18;745(2):389-97. [PubMed:11043757 ]

Enzymes

General function:
Involved in glutaminase activity
Specific function:
Plays an important role in the regulation of glutamine catabolism. Promotes mitochondrial respiration and increases ATP generation in cells by catalyzing the synthesis of glutamate and alpha-ketoglutarate. Increases cellular anti-oxidant function via NADH and glutathione production. May play a role in preventing tumor proliferation.
Gene Name:
GLS2
Uniprot ID:
Q9UI32
Molecular weight:
66322.225
Reactions
D-Glutamine + Water → D-Glutamic acid + Ammoniadetails
General function:
Involved in glutaminase activity
Specific function:
Catalyzes the first reaction in the primary pathway for the renal catabolism of glutamine. Plays a role in maintaining acid-base homeostasis. Regulates the levels of the neurotransmitter glutamate in the brain. Isoform 2 lacks catalytic activity.
Gene Name:
GLS
Uniprot ID:
O94925
Molecular weight:
65459.525
Reactions
D-Glutamine + Water → D-Glutamic acid + Ammoniadetails