Record Information
Version1.0
StatusDetected and Quantified
Creation Date2021-12-11 00:18:45 UTC
Update Date2022-09-01 02:13:48 UTC
Metabolite IDMMDBc0047980
Metabolite Identification
Common Name3,4-Dihydroxybenzeneacetic acid
Description3,4-Dihydroxyphenylacetic acid (DOPAC) is a phenolic acid. DOPAC is a neuronal metabolite of dopamine (DA). DA undergoes monoamine oxidase-catalyzed oxidative deamination to 3,4-dihydroxyphenylacetaldehyde (DOPAL), which is metabolized primarily into DOPAC via aldehyde dehydrogenase (ALDH2). The biotransformation of DOPAL is critical as previous studies have demonstrated this DA-derived aldehyde to be a reactive electrophile and toxic to dopaminergic cells. Known inhibitors of mitochondrial ALDH2, such as 4-hydroxy-2-nonenal (4HNE) inhibit ALDH2-mediated oxidation of the endogenous neurotoxin DOPAL. 4HNE is one of the resulting products of oxidative stress, thus linking oxidative stress to the uncontrolled production of an endogenous neurotoxin relevant to Parkinson's disease. In early-onset Parkinson disease, there is markedly reduced activities of both monoamine oxidase (MAO) A and B. The amount of DOPAC, which is produced during dopamine oxidation by MAO, is greatly reduced as a result of increased parkin overexpression. Administration of methamphetamine to animals causes loss of DA terminals in the brain and significant decreases in dopamine and dihydroxyphenylacetic acid (DOPAC) in the striatum. Renal dopamine produced in the residual tubular units may be enhanced during a sodium challenge, thus behaving appropriately as a compensatory natriuretic hormone; however, the renal dopaminergic system in patients afflicted with renal parenchymal disorders should address parameters other than free urinary dopamine, namely the urinary excretion of L-DOPA and metabolites. DOPAC is one of the major phenolic acids formed during human microbial fermentation of tea, citrus, and soy flavonoid supplements. DOPAC exhibits a considerable antiproliferative effect in LNCaP prostate cancer and HCT116 colon cancer cells. The antiproliferative activity of DOPAC may be due to its catechol structure. A similar association of the catechol moiety in the B-ring with antiproliferative activity was demonstrated for flavanones (PMID:16956664 , 16455660 , 8561959 , 11369822 , 10443478 , 16365058 ). DOPAC can be found in Gram-positive bacteria (PMID:24752840 ).
Structure
Synonyms
ValueSource
2-(3,4-DIHYDROXYPHENYL)acetIC ACIDChEBI
3,4-Dihydroxyphenyl acetic acidChEBI
3,4-Dihydroxyphenylacetic acidChEBI
Dopacetic acidChEBI
HomoprotocatechuateKegg
2-(3,4-DIHYDROXYPHENYL)acetateGenerator
3,4-Dihydroxyphenyl acetateGenerator
3,4-DihydroxyphenylacetateGenerator
DopacetateGenerator
3,4-DihydroxybenzeneacetateGenerator
3,4 Dihydroxyphenylacetic acidHMDB
3,4-Dihydroxyphenylacetic acid, monosodium saltHMDB
(3,4-Dihydroxyphenyl)-acetic acidHMDB
(3,4-Dihydroxyphenyl)acetateHMDB
(3,4-Dihydroxyphenyl)acetic acidHMDB
3,4-DHPOPHMDB
3,4-Dihydroxy-benzeneacetic acidHMDB
3,4-Dihydroxy-phenylacetic acidHMDB
DHYHMDB
DihydroxyphenylacetateHMDB
Dihydroxyphenylacetic acidHMDB
HAAHMDB
Homogentisic acidHMDB
3',4'-Dihydroxyphenylacetic acidHMDB
Molecular FormulaC8H8O4
Average Mass168.1467
Monoisotopic Mass168.042258744
IUPAC Name2-(3,4-dihydroxyphenyl)acetic acid
Traditional Name3,4 dihydroxyphenylacetic acid
CAS Registry NumberNot Available
SMILES
OC(=O)CC1=CC(O)=C(O)C=C1
InChI Identifier
InChI=1S/C8H8O4/c9-6-2-1-5(3-7(6)10)4-8(11)12/h1-3,9-10H,4H2,(H,11,12)
InChI KeyCFFZDZCDUFSOFZ-UHFFFAOYSA-N