Application Notes:
This high purity fatty acid methyl ester is ideal as a standard and for biological studies. During the metabolism of dodecanoic
acid it is converted to the omega-hydroxy dodecanoic acid and then to the dicarboxylic dodecanedioc acid. In some marine
organisms dodecanoic acid is hydroxylated in other positions as well as at the terminal position.1 Long chain fatty acids have
been found to inhibit the double-stranded DNA binding activity of p53 DNA binding domain suggesting that fatty acids in
the cell membrane might regulate the activity of p53 for cell division, cell-cycle checkpoint, and tumor suppression.2
Dodecanoic acid in rat liver cells can be desaturated to n-3 dodecenoic acid which may be the first step in the biosynthesis of
-linolenic acid.3 X-linked adrenoleukodystrophy (X-ALD) is an inherited disorder of peroxisomal metabolism and is
characterized by deficient -oxidation of saturated very long chain fatty acids (VLCFA) resulting in an accumulation of
VLCFA and a subsequent decrease in shorter fatty acids such as dodecanoic acid. Long chain fatty acids acylated to
sphingolipids are critical in many biological functions and substantial amounts are found to be amide-linked to the long-chain
sphingoid base sphinganine, forming a ceramide, which constitutes the lipid backbone of sphingomyelin and other
sphingolipids. Long chain fatty acids can often be found in esterified linkages with cholesterol, gangliosides,
galactocerebrosides, sphingomyelin, and phosphatidylcholine. Dodecanoic acid, as a saturated fatty acid, has been found to
cause moderate risk of coronary heart disease as compared with polyunsaturated fatty acids and significantly lowers the total
cholesterol/high density lipoprotein-cholesterol ratio as compared with carbohydrates.4
References:
1. P. Lemaire et al. “Subterminal hydroxylation of lauric acid by microsomes from a marine fish” Lipids, vol. 27 pp. 187-191, 1992
2. H. Iijima et al. “The Inhibitory Action of Long-Chain Fatty Acids on the DNA Binding Activity of p53” Lipids, vol. 41 pp. 521-527, 2006
3. P. Legrand et al. “Lauric acid is desaturated to 12:1n-3 by hepatocytes and rat liver homogenates” Lipids, vol. 37 pp. 569-572, 2002
4. R. Micha and D. Mozaffarian “Saturated Fat and Cardiometabolic Risk Factors, Coronary Heart Disease, Stroke, and Diabetes: a Fresh Look at the
Evidence” Lipids, vol. 45 pp. 893-905, 2010