Record Information |
---|
Version | 2.0 |
---|
Created at | 2005-11-16 15:48:42 UTC |
---|
Updated at | 2022-01-11 19:07:20 UTC |
---|
NP-MRD ID | NP0000087 |
---|
Secondary Accession Numbers | None |
---|
Natural Product Identification |
---|
Common Name | alpha-Ketoisovaleric acid |
---|
Description | Alpha-Ketoisovaleric acid is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids. Alpha-Ketoisovaleric acid is a neurotoxin, an acidogen, and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of alpha-ketoisovaleric acid are associated with maple syrup urine disease. MSUD is a metabolic disorder caused by a deficiency of the branched-chain alpha-keto acid dehydrogenase complex (BCKDC), leading to a buildup of the branched-chain amino acids (leucine, isoleucine, and valine) and their toxic by-products (ketoacids) in the blood and urine. The symptoms of MSUD often show in infancy and lead to severe brain damage if untreated. MSUD may also present later depending on the severity of the disease. If left untreated in older individuals, during times of metabolic crisis, symptoms of the condition include uncharacteristically inappropriate, extreme, or erratic behaviour and moods, hallucinations, anorexia, weight loss, anemia, diarrhea, vomiting, dehydration, lethargy, oscillating hypertonia and hypotonia, ataxia, seizures, hypoglycemia, ketoacidosis, opisthotonus, pancreatitis, rapid neurological decline, and coma. In maple syrup urine disease, the brain concentration of branched-chain ketoacids can increase 10- to 20-fold. This leads to a depletion of glutamate and a consequent reduction in the concentration of brain glutamine, aspartate, alanine, and other amino acids. The result is a compromise of energy metabolism because of a failure of the malate-aspartate shuttle and a diminished rate of protein synthesis (PMID: 15930465 ). Alpha-Ketoisovaleric acid is a keto-acid, which is a subclass of organic acids. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated MSUD. Many affected children with organic acidemias experience intellectual disability or delayed development. |
---|
Structure | InChI=1S/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8) |
---|
Synonyms | Value | Source |
---|
2-Keto-3-methylbutyric acid | ChEBI | 2-Ketoisovaleric acid | ChEBI | 2-Ketovaline | ChEBI | 2-oxo-3-Methylbutanoic acid | ChEBI | 2-oxo-3-Methylbutyric acid | ChEBI | 2-Oxoisovaleric acid | ChEBI | 3-Methyl-2-oxobutanoate | ChEBI | 3-Methyl-2-oxobutyric acid | ChEBI | alpha-Keto-isovaleric acid | ChEBI | alpha-Ketovaline | ChEBI | alpha-oxo-beta-Methylbutyricacid | ChEBI | alpha-Oxoisovaleric acid | ChEBI | Dimethylpyruvic acid | ChEBI | Isopropylglyoxylic acid | ChEBI | 2-oxo-3-Methylbutanoate | Kegg | 2-Oxoisovalerate | Kegg | 2-Oxoisopentanoate | Kegg | 2-Keto-3-methylbutyrate | Generator | 2-Ketoisovalerate | Generator | 2-oxo-3-Methylbutyrate | Generator | 3-Methyl-2-oxobutanoic acid | Generator | 3-Methyl-2-oxobutyrate | Generator | a-Keto-isovalerate | Generator | a-Keto-isovaleric acid | Generator | alpha-Keto-isovalerate | Generator | Α-keto-isovalerate | Generator | Α-keto-isovaleric acid | Generator | a-Ketovaline | Generator | Α-ketovaline | Generator | a-oxo-b-Methylbutyricacid | Generator | Α-oxo-β-methylbutyricacid | Generator | a-Oxoisovalerate | Generator | a-Oxoisovaleric acid | Generator | alpha-Oxoisovalerate | Generator | Α-oxoisovalerate | Generator | Α-oxoisovaleric acid | Generator | Dimethylpyruvate | Generator | Isopropylglyoxylate | Generator | 2-Oxoisopentanoic acid | Generator | a-Ketoisovalerate | Generator | a-Ketoisovaleric acid | Generator | alpha-Ketoisovalerate | Generator | Α-ketoisovalerate | Generator | Α-ketoisovaleric acid | Generator | 2-Ketoisvaleric acid | HMDB | 2-oxo-3-Methyl-butyrate | HMDB | 3-Methyl-2-oxo-butanoate | HMDB | 3-Methyl-2-oxo-butanoic acid | HMDB | 3-Methyl-2-oxo-butyrate | HMDB | 3-Methyl-2-oxo-butyric acid | HMDB | 3-Methyl-2-oxobutinoate | HMDB | 3-Methyl-2-oxobutinoic acid | HMDB | a-Keto-b-methylbutyrate | HMDB | a-Keto-b-methylbutyric acid | HMDB | a-oxo-b-Methylbutyrate | HMDB | a-oxo-b-Methylbutyric acid | HMDB | alpha-Keto-beta-methylbutyrate | HMDB | alpha-Keto-beta-methylbutyric acid | HMDB | alpha-oxo-beta-Methylbutyrate | HMDB | alpha-oxo-beta-Methylbutyric acid | HMDB | Ketovaline | HMDB | alpha-Ketoisopentanoic acid | HMDB | alpha-Ketoisovaleric acid | Generator, MeSH |
|
---|
Chemical Formula | C5H8O3 |
---|
Average Mass | 116.1152 Da |
---|
Monoisotopic Mass | 116.04734 Da |
---|
IUPAC Name | 3-methyl-2-oxobutanoic acid |
---|
Traditional Name | α-ketoisovalerate |
---|
CAS Registry Number | 759-05-7 |
---|
SMILES | CC(C)C(=O)C(O)=O |
---|
InChI Identifier | InChI=1S/C5H8O3/c1-3(2)4(6)5(7)8/h3H,1-2H3,(H,7,8) |
---|
InChI Key | QHKABHOOEWYVLI-UHFFFAOYSA-N |
---|
Experimental Spectra |
---|
|
| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
---|
1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, simulated) | Ahselim | | | 2022-01-11 | View Spectrum | 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 |
---|
|
| Not Available | Chemical Shift Submissions |
---|
|
| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
---|
1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, simulated) | v.dorna83@yahoo.com | Not Available | Not Available | 2021-08-08 | View Spectrum |
| Species |
---|
Species of Origin | |
---|
Species Where Detected | |
---|
Chemical Taxonomy |
---|
Description | Belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms. |
---|
Kingdom | Organic compounds |
---|
Super Class | Organic acids and derivatives |
---|
Class | Keto acids and derivatives |
---|
Sub Class | Short-chain keto acids and derivatives |
---|
Direct Parent | Short-chain keto acids and derivatives |
---|
Alternative Parents | |
---|
Substituents | - Branched fatty acid
- Methyl-branched fatty acid
- Short-chain keto acid
- Alpha-keto acid
- Fatty acyl
- Alpha-hydroxy ketone
- Ketone
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Carbonyl group
- Hydrocarbon derivative
- Organic oxygen compound
- Organooxygen compound
- Organic oxide
- Aliphatic acyclic compound
|
---|
Molecular Framework | Aliphatic acyclic compounds |
---|
External Descriptors | |
---|
Physical Properties |
---|
State | Solid |
---|
Experimental Properties | |
---|
Predicted Properties | |
---|
General References | - Schaefer K, von Herrath D, Erley CM, Asmus G: Calcium ketovaline as new therapy for uremic hyperphosphatemia. Miner Electrolyte Metab. 1990;16(6):362-4. [PubMed:2089249 ]
- Livesey G, Lund P: Binding of branched-chain 2-oxo acids to bovine serum albumin. Biochem J. 1982 Apr 15;204(1):265-72. [PubMed:7115325 ]
- Shigematsu Y, Kikuchi K, Momoi T, Sudo M, Kikawa Y, Nosaka K, Kuriyama M, Haruki S, Sanada K, Hamano N, et al.: Organic acids and branched-chain amino acids in body fluids before and after multiple exchange transfusions in maple syrup urine disease. J Inherit Metab Dis. 1983;6(4):183-9. [PubMed:6422161 ]
- Chuang DT, Niu WL, Cox RP: Activities of branched-chain 2-oxo acid dehydrogenase and its components in skin fibroblasts from normal and classical-maple-syrup-urine-disease subjects. Biochem J. 1981 Oct 15;200(1):59-67. [PubMed:6895847 ]
- Schauder P, Schroder K, Langenbeck U: Serum branched-chain amino and keto acid response to a protein-rich meal in man. Ann Nutr Metab. 1984;28(6):350-6. [PubMed:6393856 ]
- Tsuchiya H, Hashizume I, Tokunaga T, Tatsumi M, Takagi N, Hayashi T: High-performance liquid chromatography of alpha-keto acids in human saliva. Arch Oral Biol. 1983;28(11):989-92. [PubMed:6581765 ]
|
---|