| Record Information |
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| Version | 2.0 |
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| Created at | 2005-11-16 15:48:42 UTC |
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| Updated at | 2021-08-19 23:59:05 UTC |
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| NP-MRD ID | NP0001378 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | 3-Mercaptopyruvic acid |
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| Description | 3-Mercaptopyruvic acid, also known as 3-mercapto-2-oxopropanoate or beta-thiopyruvate, belongs to the class of organic compounds known as alpha-keto acids and derivatives. These are organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon. 3-Mercaptopyruvic acid is an intermediate in cysteine metabolism. 3-Mercaptopyruvic acid exists in all living organisms, ranging from bacteria to humans. Within humans, 3-mercaptopyruvic acid participates in a number of enzymatic reactions. In particular, 3-mercaptopyruvic acid and cyanide can be converted into pyruvic acid and thiocyanate; which is mediated by the enzyme 3-mercaptopyruvate sulfurtransferase. In addition, 3-mercaptopyruvic acid can be biosynthesized from 3-mercaptolactic acid; which is mediated by the enzyme L-lactate dehydrogenase. It has been studied as a potential treatment for cyanide poisoning, but its half-life is too short for it to be clinically effective. In humans, 3-mercaptopyruvic acid is involved in cystinosis, ocular nonnephropathic. Outside of the human body, 3-mercaptopyruvic acid has been detected, but not quantified in several different foods, such as lima beans, spinachs, shallots, mexican groundcherries, and white lupines. This could make 3-mercaptopyruvic acid a potential biomarker for the consumption of these foods. |
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| Structure | InChI=1S/C3H4O3S/c4-2(1-7)3(5)6/h7H,1H2,(H,5,6) |
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| Synonyms | | Value | Source |
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| 3-Mercapto-2-oxopropanoic acid | ChEBI | | 3-Mercaptopyruvate | ChEBI | | Mercaptopyruvate | ChEBI | | 2-oxo-3-Sulfanylpropanoate | Kegg | | 3-Mercapto-2-oxopropanoate | Generator | | Mercaptopyruvic acid | Generator | | 2-oxo-3-Sulfanylpropanoic acid | Generator | | 2-oxo-3-Sulphanylpropanoate | Generator | | 2-oxo-3-Sulphanylpropanoic acid | Generator | | 3-Mercapto-pyruvate | HMDB | | 3-Mercapto-pyruvic acid | HMDB | | beta-3-Mercapto-2-oxo-propanoate | HMDB | | beta-3-Mercapto-2-oxo-propanoic acid | HMDB | | beta-Mercaptopyruvate | HMDB | | beta-Mercaptopyruvic acid | HMDB | | beta-Thiopyruvate | HMDB | | beta-Thiopyruvic acid | HMDB | | Thiopyruvate | HMDB | | 3-Mercaptopyruvate monosodium salt | HMDB |
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| Chemical Formula | C3H4O3S |
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| Average Mass | 120.1270 Da |
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| Monoisotopic Mass | 119.98811 Da |
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| IUPAC Name | 2-oxo-3-sulfanylpropanoic acid |
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| Traditional Name | β-mercaptopyruvic acid |
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| CAS Registry Number | 2464-23-5 |
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| SMILES | OC(=O)C(=O)CS |
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| InChI Identifier | InChI=1S/C3H4O3S/c4-2(1-7)3(5)6/h7H,1H2,(H,5,6) |
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| InChI Key | OJOLFAIGOXZBCI-UHFFFAOYSA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Predicted Spectra |
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| Not Available | | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as alpha-keto acids and derivatives. These are organic compounds containing an aldehyde substituted with a keto group on the adjacent carbon. |
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| Kingdom | Organic compounds |
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| Super Class | Organic acids and derivatives |
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| Class | Keto acids and derivatives |
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| Sub Class | Alpha-keto acids and derivatives |
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| Direct Parent | Alpha-keto acids and derivatives |
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| Alternative Parents | |
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| Substituents | - Alpha-keto acid
- Alpha-hydroxy ketone
- Ketone
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Alkylthiol
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organosulfur compound
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Physical Properties |
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| State | Solid |
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| Experimental Properties | |
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| Predicted Properties | |
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| General References | - Cooper AJ, Haber MT, Meister A: On the chemistry and biochemistry of 3-mercaptopyruvic acid, the alpha-keto acid analog of cysteine. J Biol Chem. 1982 Jan 25;257(2):816-26. [PubMed:7054184 ]
- Galardon E, Lec JC: Synthesis, Characterisation and Reactivity of 3-Mercaptopyruvic Acid. Chembiochem. 2018 May 20. doi: 10.1002/cbic.201800199. [PubMed:29779240 ]
- Andreessen C, Gerlt V, Steinbuchel A: Conversion of cysteine to 3-mercaptopyruvic acid by bacterial aminotransferases. Enzyme Microb Technol. 2017 Apr;99:38-48. doi: 10.1016/j.enzmictec.2017.01.004. Epub 2017 Jan 16. [PubMed:28193330 ]
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