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 | 2024-09-17 15:42:41 UTC |
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NP-MRD ID | NP0000694 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | Alpha-Linolenic acid |
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Description | Alpha-Linolenic acid (ALA) is a polyunsaturated fatty acid (PUFA). It is a member of the group of essential fatty acids called omega-3 fatty acids. Alpha-Linolenic acid, in particular, is not synthesized by mammals and therefore is an essential dietary requirement for all mammals. Certain nuts (English walnuts) and vegetable oils (canola, soybean, flaxseed/linseed, olive) are particularly rich in alpha-linolenic acid. Omega-3 fatty acids get their name based on the location of one of their first double bond. In all omega-3 fatty acids, the first double bond is located between the third and fourth carbon atom counting from the methyl end of the fatty acid (n-3). Although humans and other mammals can synthesize saturated and some monounsaturated fatty acids from carbon groups in carbohydrates and proteins, they lack the enzymes necessary to insert a cis double bond at the n-6 or the n-3 position of a fatty acid. Omega-3 fatty acids like alpha-linolenic acid are important structural components of cell membranes. When incorporated into phospholipids, they affect cell membrane properties such as fluidity, flexibility, permeability, and the activity of membrane-bound enzymes. Omega-3 fatty acids can modulate the expression of a number of genes, including those involved with fatty acid metabolism and inflammation. Alpha-Linolenic acid and other omega-3 fatty acids may regulate gene expression by interacting with specific transcription factors, including peroxisome proliferator-activated receptors (PPARs) and liver X receptors (LXRs). Alpha-Linolenic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism. |
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Structure | CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O InChI=1S/C18H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h3-4,6-7,9-10H,2,5,8,11-17H2,1H3,(H,19,20)/b4-3-,7-6-,10-9- |
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Synonyms | Value | Source |
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(9,12,15)-Linolenic acid | ChEBI | (9Z,12Z,15Z)-Octadecatrienoic acid | ChEBI | (Z,Z,Z)-9,12,15-Octadecatrienoic acid | ChEBI | 9,12,15-Octadecatrienoic acid | ChEBI | 9-cis,12-cis,15-cis-Octadecatrienoic acid | ChEBI | ALA | ChEBI | all-cis-9,12,15-Octadecatrienoic acid | ChEBI | cis,cis,cis-9,12,15-Octadecatrienoic acid | ChEBI | cis-Delta(9,12,15)-Octadecatrienoic acid | ChEBI | Linolenic acid | ChEBI | Linolenate | Kegg | alpha-Linolenate | Kegg | (9,12,15)-Linolenate | Generator | (9Z,12Z,15Z)-Octadecatrienoate | Generator | (Z,Z,Z)-9,12,15-Octadecatrienoate | Generator | 9,12,15-Octadecatrienoate | Generator | 9-cis,12-cis,15-cis-Octadecatrienoate | Generator | all-cis-9,12,15-Octadecatrienoate | Generator | cis,cis,cis-9,12,15-Octadecatrienoate | Generator | cis-delta(9,12,15)-Octadecatrienoate | Generator | cis-Δ(9,12,15)-octadecatrienoate | Generator | cis-Δ(9,12,15)-octadecatrienoic acid | Generator | a-Linolenate | Generator | a-Linolenic acid | Generator | Α-linolenate | Generator | Α-linolenic acid | Generator | alpha Linolenic acid | HMDB | cis-9,12,15-Octadecatrienoate | HMDB | cis-9,12,15-Octadecatrienoic acid | HMDB | Industrene 120 | HMDB | FA(18:3(9Z,12Z,15Z)) | HMDB | FA(18:3n3) | HMDB |
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Chemical Formula | C18H30O2 |
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Average Mass | 278.4296 Da |
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Monoisotopic Mass | 278.22458 Da |
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IUPAC Name | (9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid |
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Traditional Name | α linolenic acid |
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CAS Registry Number | 463-40-1 |
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SMILES | CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O |
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InChI Identifier | InChI=1S/C18H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h3-4,6-7,9-10H,2,5,8,11-17H2,1H3,(H,19,20)/b4-3-,7-6-,10-9- |
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InChI Key | DTOSIQBPPRVQHS-PDBXOOCHSA-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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2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CDCl3, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
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| Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| 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 lineolic acids and derivatives. These are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Fatty Acyls |
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Sub Class | Lineolic acids and derivatives |
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Direct Parent | Lineolic acids and derivatives |
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Alternative Parents | |
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Substituents | - Octadecanoid
- Long-chain fatty acid
- Fatty acid
- Unsaturated fatty acid
- Straight chain fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- 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 | Liquid |
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Experimental Properties | |
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Predicted Properties | |
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General References | - Richieri GV, Ogata RT, Kleinfeld AM: Equilibrium constants for the binding of fatty acids with fatty acid-binding proteins from adipocyte, intestine, heart, and liver measured with the fluorescent probe ADIFAB. J Biol Chem. 1994 Sep 30;269(39):23918-30. [PubMed:7929039 ]
- Bajaj M, Suraamornkul S, Romanelli A, Cline GW, Mandarino LJ, Shulman GI, DeFronzo RA: Effect of a sustained reduction in plasma free fatty acid concentration on intramuscular long-chain fatty Acyl-CoAs and insulin action in type 2 diabetic patients. Diabetes. 2005 Nov;54(11):3148-53. [PubMed:16249438 ]
- Christensen JH, Fabrin K, Borup K, Barber N, Poulsen J: Prostate tissue and leukocyte levels of n-3 polyunsaturated fatty acids in men with benign prostate hyperplasia or prostate cancer. BJU Int. 2006 Feb;97(2):270-3. [PubMed:16430627 ]
- Attar-Bashi NM, Frauman AG, Sinclair AJ: Alpha-linolenic acid and the risk of prostate cancer. What is the evidence? J Urol. 2004 Apr;171(4):1402-7. [PubMed:15017185 ]
- Rastogi SK, Singh J: Effect of chemical penetration enhancer and iontophoresis on the in vitro percutaneous absorption enhancement of insulin through porcine epidermis. Pharm Dev Technol. 2005;10(1):97-104. [PubMed:15776817 ]
- Allman MA, Pena MM, Pang D: Supplementation with flaxseed oil versus sunflowerseed oil in healthy young men consuming a low fat diet: effects on platelet composition and function. Eur J Clin Nutr. 1995 Mar;49(3):169-78. [PubMed:7774533 ]
- Fokkema MR, Brouwer DA, Hasperhoven MB, Martini IA, Muskiet FA: Short-term supplementation of low-dose gamma-linolenic acid (GLA), alpha-linolenic acid (ALA), or GLA plus ALA does not augment LCP omega 3 status of Dutch vegans to an appreciable extent. Prostaglandins Leukot Essent Fatty Acids. 2000 Nov;63(5):287-92. [PubMed:11090255 ]
- Becker CC, Lund P, Holmer G, Jensen H, Sandstrom B: Effects of butter oil blends with increased concentrations of stearic, oleic and linolenic acid on blood lipids in young adults. Eur J Clin Nutr. 1999 Jul;53(7):535-41. [PubMed:10452408 ]
- Jones DB, Scaretto L, Carter R, Mann JI: Glucose, insulin and platelet fatty acids following myocardial infarction: an association with infarct size. Diabete Metab. 1987 Jul-Aug;13(4):463-6. [PubMed:3315767 ]
- Crastes de Paulet A, Babin F, Billeaud C, Bougle D, Sarda P, Mendy F: [Biological effects on premature neonates of a milk formula enriched with alpha-linolenic acid: a multicenter study]. Bull Acad Natl Med. 1994 Feb;178(2):267-73; discussion 273-8. [PubMed:7913655 ]
- Li D, Sinclair A, Wilson A, Nakkote S, Kelly F, Abedin L, Mann N, Turner A: Effect of dietary alpha-linolenic acid on thrombotic risk factors in vegetarian men. Am J Clin Nutr. 1999 May;69(5):872-82. [PubMed:10232625 ]
- Bhatia KS, Singh J: Effect of linolenic acid/ethanol or limonene/ethanol and iontophoresis on the in vitro percutaneous absorption of LHRH and ultrastructure of human epidermis. Int J Pharm. 1999 Apr 15;180(2):235-50. [PubMed:10370194 ]
- Baylin A, Kabagambe EK, Ascherio A, Spiegelman D, Campos H: Adipose tissue alpha-linolenic acid and nonfatal acute myocardial infarction in Costa Rica. Circulation. 2003 Apr 1;107(12):1586-91. Epub 2003 Mar 10. [PubMed:12668490 ]
- Williard DE, Nwankwo JO, Kaduce TL, Harmon SD, Irons M, Moser HW, Raymond GV, Spector AA: Identification of a fatty acid delta6-desaturase deficiency in human skin fibroblasts. J Lipid Res. 2001 Apr;42(4):501-8. [PubMed:11290821 ]
- Campbell FM, Gordon MJ, Dutta-Roy AK: Preferential uptake of long chain polyunsaturated fatty acids by isolated human placental membranes. Mol Cell Biochem. 1996 Feb 9;155(1):77-83. [PubMed:8717442 ]
- Cunnane SC, Hamadeh MJ, Liede AC, Thompson LU, Wolever TM, Jenkins DJ: Nutritional attributes of traditional flaxseed in healthy young adults. Am J Clin Nutr. 1995 Jan;61(1):62-8. [PubMed:7825540 ]
- Lauritzen I, Blondeau N, Heurteaux C, Widmann C, Romey G, Lazdunski M: Polyunsaturated fatty acids are potent neuroprotectors. EMBO J. 2000 Apr 17;19(8):1784-93. [PubMed:10775263 ]
- Cho E, Hung S, Willett WC, Spiegelman D, Rimm EB, Seddon JM, Colditz GA, Hankinson SE: Prospective study of dietary fat and the risk of age-related macular degeneration. Am J Clin Nutr. 2001 Feb;73(2):209-18. [PubMed:11157315 ]
- Brouwer IA, Katan MB, Zock PL: Dietary alpha-linolenic acid is associated with reduced risk of fatal coronary heart disease, but increased prostate cancer risk: a meta-analysis. J Nutr. 2004 Apr;134(4):919-22. [PubMed:15051847 ]
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