Decanoyl Coenzyme A

Decanoyl coenzyme A (CoA) is a thioester of decanoic acid and CoA .1 It inhibits the activity of citrate synthase (CS) and glutamate dehydrogenase (GDH) in mitochondria isolated from rat brain (IC50s = 437 and 420 μM, respectively).2 Decanoyl CoA also binds the fatty acid metabolism regulator protein (FadR) promoter in E. coli (Ki = 2 μM).3 It is produced during isomerase-dependent β-oxidation of oleic acid in isolated rat heart mitochondria.4

|1. Gregersen, N., K•lvraa, S., and Mortensen, P.B. Acyl-CoA: Glycine N-acyltransferase: In vitro studies on the glycine conjugation of straight- and branched-chained acyl-CoA esters in human liver. Biochem. Med. Metab. Biol. 35(2), 210-218 (1986).|2. Lai, J.C., Lian, B.B., Zhai, S., et al. Brain mitochondrial citrate synthase and glutamate dehydrogenase: Differential inhibition by fatty acyl coenzyme A derivatives. Metab. Brain Dis. 9(2), 143-152 (1994).|3. DiRusso, C.C., Heimert, T.L., and Metzger, A.K. Characterization of FadR, a global transcriptional regulator of fatty acid metabolism in Escherichia coli. Interaction with the fadB promoter is prevented by long chain fatty acyl coenzyme A. J. Biol. Chem. 267(12), 8685-8691 (1992).|4. Ren, Y., and Schulz, H. Metabolic functions of the two pathways of oleate β-oxidation double bond metabolism during the β-oxidation of oleic acid in rat heart mitochondria. J. Biol. Chem. 278(1), 111-116 (2003).