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Record Information
Created at2005-11-16 15:48:42 UTC
Updated at2024-04-09 04:19:38 UTC
NP-MRD IDNP0001489
Secondary Accession NumbersNone
Natural Product Identification
Common NameIsovalerylglycine
DescriptionIsovalerylglycine (IVG) is an acyl glycine. Acyl glycines are normally minor metabolites of fatty acids. However, the excretion of certain acyl glycines is increased in several inborn errors of metabolism. In certain cases the measurement of these metabolites in body fluids can be used to diagnose disorders associated with mitochondrial fatty acid beta-oxidation. Acyl glycines are produced through the action of glycine N-acyltransferase (EC Which is an enzyme that catalyzes the chemical reaction: Acyl-CoA + glycine < -- > CoA + N-acylglycine. Isovalerylglycine is a byproduct of the catabolism of the aminoacid leucine. Accumulation of isovalerylglycine occurs in Isovaleric Acidemia (IVA). IVA (OMIM/ McKusick 243500) is an autosomal recessive disorder caused by mutations in the isovaleryl-CoA dehydrogenase (EC Gene. The deficiency of this enzyme in the metabolism of leucine leads to the accumulation of a series of isovaleryl-CoA metabolites, such as isovalerylglycine. It is very important to caution for false positive results when screening for isovaleric acidemia by tandem mass spectrometry based on dried blood-spot levels of C5-acylcarnitines, including isovalerylcarnitine and its isomer, pivaloylcarnitine; pivaloylcarnitine is derived from pivalate-generating antibiotics, and has caused many false-positive results (PMID: 17850781 ). Isovalerylglycine is a biomarker for the consumption of cheese.
2-(3-Methylbutanoylamino)ethanoic acidChEBI
[(3-Methylbutanoyl)amino]acetic acidHMDB
Chemical FormulaC7H13NO3
Average Mass159.1830 Da
Monoisotopic Mass159.08954 Da
IUPAC Name2-(3-methylbutanamido)acetic acid
Traditional Nameisovalerylglycine
CAS Registry Number16284-60-9
InChI Identifier
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR[1H, ] NMR Spectrum (2D, 600 MHz, CD3OD, experimental)bgnzk@missouri.eduNot AvailableNot Available2024-01-23View Spectrum
HSQC NMR[1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental)bgnzk@missouri.eduNot AvailableNot Available2024-01-23View Spectrum
HMBC NMR[1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental)bgnzk@missouri.eduNot AvailableNot Available2024-01-23View Spectrum
COSY NMR[1H, 1H] NMR Spectrum (2D, 600 MHz, CD3OD, experimental)bgnzk@missouri.eduNot AvailableNot Available2024-01-23View Spectrum
1D NMR[13C, ] NMR Spectrum (2D, 201 MHz, CD3OD, experimental)bgnzk@missouri.eduNot AvailableNot Available2024-01-23View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, experimental)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201.216488466 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600.133705802 MHz, CD3OD, simulated)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species of Origin
Species NameSourceReference
Anas platyrhynchosFooDB
Anser anserFooDB
Bison bisonFooDB
Bos taurusFooDB
Bos taurus X Bison bisonFooDB
Bubalus bubalisFooDB
Capra aegagrus hircusFooDB
Cervus canadensisFooDB
Dromaius novaehollandiaeFooDB
Equus caballusFooDB
Gallus gallusFooDB
Lagopus mutaFooDB
Lepus timidusFooDB
Melanitta fuscaFooDB
Meleagris gallopavoFooDB
Numida meleagrisFooDB
Ovis ariesFooDB
Phasianus colchicusFooDB
Struthio camelusFooDB
Sus scrofaFooDB
Sus scrofa domesticaFooDB
Species Where Detected
Species NameSourceReference
Homo sapiens (Urine)KNApSAcK Database
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-acyl-alpha amino acids
Alternative Parents
  • N-acyl-alpha-amino acid
  • Fatty amide
  • N-acyl-amine
  • Fatty acyl
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Carbonyl group
  • Organonitrogen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
Experimental Properties
Melting Point87 - 90 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility6.5 g/LALOGPS
pKa (Strongest Acidic)4.17ChemAxon
pKa (Strongest Basic)-1.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.4 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity39.22 m³·mol⁻¹ChemAxon
Polarizability16.4 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022177
KNApSAcK IDC00052329
Chemspider ID475516
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
PubChem Compound546304
PDB IDNot Available
ChEBI ID70984
Good Scents IDNot Available
General References
  1. Fries MH, Rinaldo P, Schmidt-Sommerfeld E, Jurecki E, Packman S: Isovaleric acidemia: response to a leucine load after three weeks of supplementation with glycine, L-carnitine, and combined glycine-carnitine therapy. J Pediatr. 1996 Sep;129(3):449-52. [PubMed:8804338 ]
  2. Goodman SI, McCabe ER, Fennessey PV, Mace JW: Multiple acyl-CoA dehydrogenase deficiency (glutaric aciduria type II) with transient hypersarcosinemia and sarcosinuria; possible inherited deficiency of an electron transfer flavoprotein. Pediatr Res. 1980 Jan;14(1):12-7. [PubMed:7360517 ]
  3. Hine DG, Hack AM, Goodman SI, Tanaka K: Stable isotope dilution analysis of isovalerylglycine in amniotic fluid and urine and its application for the prenatal diagnosis of isovaleric acidemia. Pediatr Res. 1986 Mar;20(3):222-6. [PubMed:3703611 ]
  4. Shigematsu Y, Hata I, Tanaka Y: Stable-isotope dilution measurement of isovalerylglycine by tandem mass spectrometry in newborn screening for isovaleric acidemia. Clin Chim Acta. 2007 Nov-Dec;386(1-2):82-6. Epub 2007 Aug 19. [PubMed:17850781 ]
  5. Slupsky CM, Cheypesh A, Chao DV, Fu H, Rankin KN, Marrie TJ, Lacy P: Streptococcus pneumoniae and Staphylococcus aureus pneumonia induce distinct metabolic responses. J Proteome Res. 2009 Jun;8(6):3029-36. doi: 10.1021/pr900103y. [PubMed:19368345 ]