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 | 2020-11-24 22:13:53 UTC |
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NP-MRD ID | NP0000232 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | 2-Methylbutyrylglycine |
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Description | 2-Methylbutyrylglycine 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, such as propionic acidemia. 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 2.3.1.13) Which is an enzyme that catalyzes the chemical reaction: Acyl-CoA + glycine < -- > CoA + N-acylglycine. The isolated excretion of high levels of 2-methylbutyrylglycine (2-MBG) is the hallmark of short/branched-chain acyl-CoA dehydrogenase deficiency or SBCADD (PMID:15615815 ). The disorder is also called 2-methylbutyryl-CoA dehydrogenase deficiency (PMID: 17883863 ) And has been associated with autism and mental retardation. SBCADD is a recently described autosomal recessive disorder caused by a defect in the degradation pathway of L- isoleucine leading to increased urinary excretion of 2-methylbutyryl glycine. The enzymatic defect results from disruption of the SBCAD gene. Deficiency of SBCAD leads to accumulation of its substrate, 2-methylbutyryl-CoA within the mitochondrion. This substance is transesterified with glycine by the mitochondrial enzyme acyl-CoA glycine-N-acyltransferase (glycine-N-acylase) to form 2-methylbutyryl glycine. Affected patients can be divided into two categories. The first category consists of infants detected by newborn screening programmes. These infants are treated with diet and remain without clinical symptoms. In the second category affected patients are diagnosed because they presented clinically with seizures and psychomotor delay and have increased urinary excretion of 2-methylbutyryl glycine (PMID: 17883863 ). 2-Methylbutyrylglycine has also been found in the urine of patients with propionyl-CoA carboxylase deficiency after consuming isoleucine. (PMID: 630060 ). 2-Methylbutyrylglycine is also elevated in the urine of patients with glutaric aciduria II and ethylmalonic encephalopathy. |
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Structure | InChI=1S/C7H13NO3/c1-3-5(2)7(11)8-4-6(9)10/h5H,3-4H2,1-2H3,(H,8,11)(H,9,10) |
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Synonyms | Value | Source |
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alpha-Methylbutyrylglycine | ChEBI | a-Methylbutyrylglycine | Generator | Α-methylbutyrylglycine | Generator | (2-Methyl-butyrylamino)-acetate | HMDB | (2-Methyl-butyrylamino)-acetic acid | HMDB | 2-MBG | HMDB | 2-Methylbutyryl glycine | HMDB | N-(2-Methylbutyryl)glycine | HMDB | N-Sec-valerylglycine | HMDB | 2-Methylbutyrylglycine | ChEBI |
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Chemical Formula | C7H13NO3 |
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Average Mass | 159.1830 Da |
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Monoisotopic Mass | 159.08954 Da |
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IUPAC Name | 2-(2-methylbutanamido)acetic acid |
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Traditional Name | 2-methylbutyrylglycine |
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CAS Registry Number | 52320-67-9 |
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SMILES | CCC(C)C(=O)NCC(O)=O |
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InChI Identifier | InChI=1S/C7H13NO3/c1-3-5(2)7(11)8-4-6(9)10/h5H,3-4H2,1-2H3,(H,8,11)(H,9,10) |
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InChI Key | HOACIBQKYRHBOW-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, CDCl3, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CD3OD, 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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Species Where Detected | |
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Chemical Taxonomy |
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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. |
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Kingdom | Organic compounds |
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Super Class | Organic acids and derivatives |
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Class | Carboxylic acids and derivatives |
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Sub Class | Amino acids, peptides, and analogues |
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Direct Parent | N-acyl-alpha amino acids |
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Alternative Parents | |
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Substituents | - N-acyl-alpha-amino acid
- Carboximidic acid
- Carboximidic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Organic 1,3-dipolar compound
- Propargyl-type 1,3-dipolar organic compound
- Carbonyl group
- Organooxygen compound
- Organonitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Organic nitrogen compound
- 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 | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Predicted Properties | |
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General References | - Korman SH, Andresen BS, Zeharia A, Gutman A, Boneh A, Pitt JJ: 2-ethylhydracrylic aciduria in short/branched-chain acyl-CoA dehydrogenase deficiency: application to diagnosis and implications for the R-pathway of isoleucine oxidation. Clin Chem. 2005 Mar;51(3):610-7. Epub 2004 Dec 22. [PubMed:15615815 ]
- Tein I, Haslam RH, Rhead WJ, Bennett MJ, Becker LE, Vockley J: Short-chain acyl-CoA dehydrogenase deficiency: a cause of ophthalmoplegia and multicore myopathy. Neurology. 1999 Jan 15;52(2):366-72. [PubMed:9932958 ]
- Sweetman L, Weyler W, Nyhan WL, de Cespedes C, Loria AR, Estrada Y: Abnormal metabolites of isoleucine in a patient with propionyl-CoA carboxylase deficiency. Biomed Mass Spectrom. 1978 Mar;5(3):198-207. [PubMed:630060 ]
- Kanavin OJ, Woldseth B, Jellum E, Tvedt B, Andresen BS, Stromme P: 2-methylbutyryl-CoA dehydrogenase deficiency associated with autism and mental retardation: a case report. J Med Case Rep. 2007 Sep 20;1:98. [PubMed:17883863 ]
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