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 | 2021-12-19 14:04:14 UTC |
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NP-MRD ID | NP0000967 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | L-Alanine |
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Description | Alanine (Ala), also known as L-alanine is an alpha-amino acid. These are amino acids in which the amino group is attached to the carbon atom immediately adjacent to the carboxylate group (alpha carbon). Amino acids are organic compounds that contain amino (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid. L-alanine is one of 20 proteinogenic amino acids, i.E., The amino acids used in the biosynthesis of proteins. Alanine is found in all organisms ranging from bacteria to plants to animals. It is classified as an aliphatic, non-polar amino acid. In humans, alanine is a non-essential amino acid that can be easily made in the body from either the conversion of pyruvate or the breakdown of the dipeptides carnosine and anserine. Alanine can be also synthesized from branched chain amino acids such as valine, leucine, and isoleucine. Alanine is produced by reductive amination of pyruvate through a two-step process. In the first step, alpha-ketoglutarate, ammonia and NADH are converted by the enzyme known glutamate dehydrogenase to glutamate, NAD+ and water. In the second step, the amino group of the newly-formed glutamate is transferred to pyruvate by an aminotransferase enzyme, regenerating the alpha-ketoglutarate, and converting the pyruvate to alanine. The net result is that pyruvate and ammonia are converted to alanine. In mammals, alanine plays a key role in glucose–alanine cycle between tissues and liver. In muscle and other tissues that degrade amino acids for fuel, amino groups are collected in the form of glutamate by transamination. Glutamate can then transfer its amino group to pyruvate, a product of muscle glycolysis, through the action of alanine aminotransferase, forming alanine and alpha-ketoglutarate. The alanine enters the bloodstream and is transported to the liver. The alanine aminotransferase reaction takes place in reverse in the liver, where the regenerated pyruvate is used in gluconeogenesis, forming glucose which returns to the muscles through the circulation system. Alanine is highly concentrated in muscle and is one of the most important amino acids released by muscle, functioning as a major energy source. Plasma alanine is often decreased when the BCAA (branched-chain amino acids) are deficient. This finding may relate to muscle metabolism. Alanine is highly concentrated in meat products and other high-protein foods like wheat germ and cottage cheese. Alanine is an important participant as well as a regulator of glucose metabolism. Alanine levels parallel blood sugar levels in both diabetes and hypoglycemia, and alanine is reduced in both severe hypoglycemia and the ketosis of diabetes. Alanine is an important amino acid for lymphocyte reproduction and immunity. Alanine therapy has helped dissolve kidney stones in experimental animals. Normal alanine metabolism, like that of other amino acids, is highly dependent upon enzymes that contain vitamin B6. Alanine, like GABA, taurine, and glycine, is an inhibitory neurotransmitter in the brain (http://Www.Dcnutrition.Com/AminoAcids/). |
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Structure | InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m0/s1 |
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Synonyms | Value | Source |
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(2S)-2-Aminopropanoic acid | ChEBI | (S)-2-Aminopropanoic acid | ChEBI | (S)-Alanine | ChEBI | A | ChEBI | Ala | ChEBI | ALANINE | ChEBI | L-2-Aminopropionic acid | ChEBI | L-Alanin | ChEBI | L-alpha-Alanine | ChEBI | (2S)-2-Aminopropanoate | Generator | (S)-2-Aminopropanoate | Generator | L-2-Aminopropionate | Generator | L-a-Alanine | Generator | L-Α-alanine | Generator | (S)-(+)-Alanine | HMDB | (S)-2-Amino-propanoate | HMDB | (S)-2-Amino-propanoic acid | HMDB | 2-Aminopropanoate | HMDB | 2-Aminopropanoic acid | HMDB | 2-Aminopropionate | HMDB | 2-Aminopropionic acid | HMDB | 2-Ammoniopropanoate | HMDB | 2-Ammoniopropanoic acid | HMDB | a-Alanine | HMDB | a-Aminopropionate | HMDB | a-Aminopropionic acid | HMDB | alpha-Alanine | HMDB | alpha-Aminopropanoate | HMDB | alpha-Aminopropanoic acid | HMDB | alpha-Aminopropionate | HMDB | alpha-Aminopropionic acid | HMDB | L-(+)-Alanine | HMDB | L-2-Aminopropanoate | HMDB | L-2-Aminopropanoic acid | HMDB | L-a-Aminopropionate | HMDB | L-a-Aminopropionic acid | HMDB | L-alpha-Aminopropionate | HMDB | L-alpha-Aminopropionic acid | HMDB | Abufène | HMDB | Alanine doms-adrian brand | HMDB | Alanine, L-isomer | HMDB | Doms-adrian brand OF alanine | HMDB | Doms adrian brand OF alanine | HMDB | L-Isomer alanine | HMDB | Alanine, L isomer | HMDB | L Alanine | HMDB |
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Chemical Formula | C3H7NO2 |
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Average Mass | 89.0932 Da |
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Monoisotopic Mass | 89.04768 Da |
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IUPAC Name | (2S)-2-aminopropanoic acid |
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Traditional Name | L-alanine |
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CAS Registry Number | 56-41-7 |
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SMILES | C[C@H](N)C(O)=O |
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InChI Identifier | InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m0/s1 |
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InChI Key | QNAYBMKLOCPYGJ-REOHCLBHSA-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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| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, simulated) | aguo@ualberta.ca | Not Available | Not Available | 2021-05-20 | View Spectrum |
| 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 alanine and derivatives. Alanine and derivatives are compounds containing alanine or a derivative thereof resulting from reaction of alanine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. |
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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 | Alanine and derivatives |
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Alternative Parents | |
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Substituents | - Alanine or derivatives
- Alpha-amino acid
- L-alpha-amino acid
- Amino acid
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Hydrocarbon derivative
- Organic oxygen compound
- Primary amine
- Organooxygen compound
- Organonitrogen compound
- Organic nitrogen compound
- Primary aliphatic amine
- Carbonyl group
- Amine
- Organopnictogen compound
- Organic oxide
- 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 | 300 °C | Not Available | Boiling Point | 212.00 to 213.00 °C. @ 760.00 mm Hg (est) | The Good Scents Company Information System | Water Solubility | 204 mg/mL | Wishart, D. S., Tzur, D., Knox, C., Eisner, R., Guo, A. C., Young, N., ... & Querengesser, L. (2007). HMDB: the human metabolome database. Nucleic acids research, 35(suppl_1), D521-D526. | LogP | -2.85 | Sangster, J. (1993). LOGKOW- a Databank of Evaluated Octanol-Water Partition Coefficients. Sangster Research Laboratories, Montreal. |
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Predicted Properties | |
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General References | - Sreekumar A, Poisson LM, Rajendiran TM, Khan AP, Cao Q, Yu J, Laxman B, Mehra R, Lonigro RJ, Li Y, Nyati MK, Ahsan A, Kalyana-Sundaram S, Han B, Cao X, Byun J, Omenn GS, Ghosh D, Pennathur S, Alexander DC, Berger A, Shuster JR, Wei JT, Varambally S, Beecher C, Chinnaiyan AM: Metabolomic profiles delineate potential role for sarcosine in prostate cancer progression. Nature. 2009 Feb 12;457(7231):910-4. doi: 10.1038/nature07762. [PubMed:19212411 ]
- Silwood CJ, Lynch E, Claxson AW, Grootveld MC: 1H and (13)C NMR spectroscopic analysis of human saliva. J Dent Res. 2002 Jun;81(6):422-7. [PubMed:12097436 ]
- Nicholson JK, O'Flynn MP, Sadler PJ, Macleod AF, Juul SM, Sonksen PH: Proton-nuclear-magnetic-resonance studies of serum, plasma and urine from fasting normal and diabetic subjects. Biochem J. 1984 Jan 15;217(2):365-75. [PubMed:6696735 ]
- Bairaktari E, Katopodis K, Siamopoulos KC, Tsolas O: Paraquat-induced renal injury studied by 1H nuclear magnetic resonance spectroscopy of urine. Clin Chem. 1998 Jun;44(6 Pt 1):1256-61. [PubMed:9625050 ]
- Wevers RA, Engelke U, Wendel U, de Jong JG, Gabreels FJ, Heerschap A: Standardized method for high-resolution 1H-NMR of cerebrospinal fluid. Clin Chem. 1995 May;41(5):744-51. [PubMed:7729054 ]
- Hagenfeldt L, Bjerkenstedt L, Edman G, Sedvall G, Wiesel FA: Amino acids in plasma and CSF and monoamine metabolites in CSF: interrelationship in healthy subjects. J Neurochem. 1984 Mar;42(3):833-7. [PubMed:6198473 ]
- Peng CT, Wu KH, Lan SJ, Tsai JJ, Tsai FJ, Tsai CH: Amino acid concentrations in cerebrospinal fluid in children with acute lymphoblastic leukemia undergoing chemotherapy. Eur J Cancer. 2005 May;41(8):1158-63. Epub 2005 Apr 14. [PubMed:15911239 ]
- Cynober LA: Plasma amino acid levels with a note on membrane transport: characteristics, regulation, and metabolic significance. Nutrition. 2002 Sep;18(9):761-6. [PubMed:12297216 ]
- Rainesalo S, Keranen T, Palmio J, Peltola J, Oja SS, Saransaari P: Plasma and cerebrospinal fluid amino acids in epileptic patients. Neurochem Res. 2004 Jan;29(1):319-24. [PubMed:14992292 ]
- Klassen P, Furst P, Schulz C, Mazariegos M, Solomons NW: Plasma free amino acid concentrations in healthy Guatemalan adults and in patients with classic dengue. Am J Clin Nutr. 2001 Mar;73(3):647-52. [PubMed:11237944 ]
- Iioka H, Hisanaga H, Moriyama IS, Akada S, Shimamoto T, Yamada Y, Ichijo M: Characterization of human placental activity for transport of L-alanine, using brush border (microvillous) membrane vesicles. Placenta. 1992 Mar-Apr;13(2):179-90. [PubMed:1631030 ]
- Saklatvala J: Hydrolysis of the elastase substrate succinyltrialanine nitroanilide by a metal-dependent enzyme in rheumatoid synovial fluid. J Clin Invest. 1977 May;59(5):794-801. [PubMed:16038 ]
- Stahl A, Frick A, Imler M, Schlienger JL: Semiautomated enzymic microassay for plasma L-alanine. Enzyme. 1979;24(5):294-301. [PubMed:41707 ]
- Nadeau D, Marchand C: Change in the kinetics of sulphacetamide tissue distribution in Walker tumor-bearing rats. Drug Metab Dispos. 1975 Nov-Dec;3(6):565-76. [PubMed:1234 ]
- Authors unspecified: Extension of maternity benefits, 1989. Annu Rev Popul Law. 1989;16:87. [PubMed:12344567 ]
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