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Record Information
Creation Date2005-11-16 15:48:42 UTC
Update Date2017-03-02 21:26:08 UTC
Secondary Accession NumbersNone
Metabolite Identification
Common NameHydroxyphenylacetylglycine
DescriptionHydroxyphenylacetylglycine 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. Hydroxyphenylacetylglycine is an endogenous human metabolite. It can be originated from the metabolism of tyramine, itself is a monoamine compound derived from the amino acid tyrosine. Hydroxyphenylacetylglycine can also be derived from the metabolism of 3,4-dihydroxyphenylalanine (L-DOPA). In the metabolism of tyrosine, this compound is involved in the reaction Hydroxyphenylacetyl-CoA + Glycine <=> Hydroxyphenylacetylglycine + CoA, catalyzed by acyltransferase enzymes (EC 2.3.1.-). Hydroxyphenylacetylglycine has been identified in human biofluids. (PMID: 14201174 , 912020 , 716472 , 7096501 , 7438429 , 7438430 ).
[[(4-Hydroxyphenyl)acetyl]amino]acetic acidHMDB
Chemical FormulaC10H11NO4
Average Molecular Weight209.1986
Monoisotopic Molecular Weight209.068807845
IUPAC Name2-[2-(4-hydroxyphenyl)acetamido]acetic acid
Traditional Namep-hydroxyphenylacetylglycine
CAS Registry Number28116-23-6
InChI Identifier
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as n-acyl-alpha amino acids. These are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom.
KingdomChemical entities
Super ClassOrganic compounds
ClassOrganic acids and derivatives
Sub ClassCarboxylic acids and derivatives
Direct ParentN-acyl-alpha amino acids
Alternative Parents
  • N-acyl-alpha-amino acid
  • Phenylacetamide
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Monocyclic benzene moiety
  • Benzenoid
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic nitrogen compound
  • Organic oxygen compound
  • Carbonyl group
  • Organic oxide
  • Hydrocarbon derivative
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
StatusDetected but not Quantified
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility2.0 mg/mLALOGPS
pKa (Strongest Acidic)3.54ChemAxon
pKa (Strongest Basic)-2.8ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area86.63 Å2ChemAxon
Rotatable Bond Count4ChemAxon
Refractivity52.15 m3·mol-1ChemAxon
Polarizability20.13 Å3ChemAxon
Number of Rings1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-056r-9610000000-cad7edd3bdf64818adaeView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0a4i-1900000000-fcf6e7a0752287623324View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0a6r-7900000000-7353e482e3f45a50129aView in MoNA
1D NMR1H NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
Biological Properties
Cellular LocationsNot Available
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BloodExpected but not Quantified Not AvailableNot Available
    UrineDetected but not Quantified Not AvailableNot AvailableNormal details
    Abnormal Concentrations
    Not Available
    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 IDFDB022212
    KNApSAcK IDNot Available
    Chemspider ID389604
    KEGG Compound IDC05596
    BioCyc IDNot Available
    BiGG IDNot Available
    Wikipedia LinkNot Available
    NuGOwiki LinkHMDB00735
    Metagene LinkHMDB00735
    METLIN IDNot Available
    PubChem Compound440732
    PDB IDNot Available
    ChEBI ID28595
    Synthesis ReferenceNot Available
    Material Safety Data Sheet (MSDS)Not Available
    General References
    1. Ramsdell HS, Baretz BH, Tanaka K: Mass spectrometric studies of twenty-one metabolically important acylglycines. Biomed Mass Spectrom. 1977 Aug;4(4):220-5. [PubMed:912020 ]
    2. Tanaka K, Hine DG: Compilation of gas chromatographic retention indices of 163 metabolically important organic acids, and their use in detection of patients with organic acidurias. J Chromatogr. 1982 Apr 30;239:301-22. [PubMed:7096501 ]
    3. Tanaka K, West-Dull A, Hine DG, Lynn TB, Lowe T: Gas-chromatographic method of analysis for urinary organic acids. II. Description of the procedure, and its application to diagnosis of patients with organic acidurias. Clin Chem. 1980 Dec;26(13):1847-53. [PubMed:7438430 ]
    4. NAKAJIMA T, SANO I: NEW METABOLITES OF P-TYRAMINE FROM THE URINE OF RATS. Biochim Biophys Acta. 1964 Jul 15;90:37-44. [PubMed:14201174 ]
    5. Goodwin BL, Ruthven CR, King GS, Sandler M: Metabolism of 3, 4-dihydroxyphenylalanine, its metabolites and analogues in vivo in the rat: urinary excretion pattern. Xenobiotica. 1978 Oct;8(10):629-51. [PubMed:716472 ]
    6. Tanaka K, Hine DG, West-Dull A, Lynn TB: Gas-chromatographic method of analysis for urinary organic acids. I. Retention indices of 155 metabolically important compounds. Clin Chem. 1980 Dec;26(13):1839-46. [PubMed:7438429 ]


    General function:
    Involved in glycine N-acyltransferase activity
    Specific function:
    Mitochondrial acyltransferase which transfers an acyl group to the N-terminus of glycine and glutamine, although much less efficiently. Can conjugate numerous substrates to form a variety of N-acylglycines, with a preference for benzoyl-CoA over phenylacetyl-CoA as acyl donors. Thereby detoxify xenobiotics, such as benzoic acid or salicylic acid, and endogenous organic acids, such as isovaleric acid.
    Gene Name:
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    General function:
    Involved in glycine N-acyltransferase activity
    Specific function:
    Acyltransferase which transfers an acyl group to the N-terminus of glutamine. Can use phenylacetyl-CoA as an acyl donor.
    Gene Name:
    Uniprot ID:
    Molecular weight:
    General function:
    Involved in glycine N-acyltransferase activity
    Specific function:
    Mitochondrial acyltransferase which transfers the acyl group to the N-terminus of glycine. Conjugates numerous substrates, such as arachidonoyl-CoA and saturated medium and long-chain acyl-CoAs ranging from chain-length C8:0-CoA to C18:0-CoA, to form a variety of N-acylglycines. Shows a preference for monounsaturated fatty acid oleoyl-CoA (C18:1-CoA) as an acyl donor. Does not exhibit any activity toward C22:6-CoA and chenodeoxycholoyl-CoA, nor toward serine or alanine.
    Gene Name:
    Uniprot ID:
    Molecular weight:
    General function:
    Involved in glycine N-acyltransferase activity
    Specific function:
    Acyltransferase which transfers the acyl group to the N- terminus of glycine
    Gene Name:
    Uniprot ID:
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    General function:
    Involved in damaged DNA binding
    Specific function:
    Acetyltransferase required for the establishment of sister chromatid cohesion and couple the processes of cohesion and DNA replication to ensure that only sister chromatids become paired together. In contrast to the structural cohesins, the deposition and establishment factors are required only during S phase. Acts by mediating the acetylation of cohesin component SMC3
    Gene Name:
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    Molecular weight: