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Several different arachidonoyl amino acids, including N-arachidonoyl dopamine (NADA) and N-arachidonoyl-L-serine (ARA-S), have been isolated and characterized from bovine brain.1 During mass spectrometry lipidomics analysis of rat brain, a series of fatty acyl amides of a third amino acid, taurine, was discovered.2 This novel class or compounds is present in kidney and activates members of the transient receptor potential (TRP) family of calcium channels.3 N-arachidonoyl taurine, a prominent N-acyl taurine, activates both TRPV1 and TRPV4 with EC50 values of 28 and 21 µM, respectively.3
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1
Huang, S.M., Bisogno, T., Petros, T.J., et al. Identification of a new class of molecules, the arachidonyl amino acids, and characterization of one member that inhibits pain. J Biol Chem 276(46) 42639-42644 (2001).
2
Cravatt, B.F., Maxey, K.M. . (2004).
3
Saghatelian, A., McKinney, M.K., Bandell, M., et al. A FAAH-regulated class of N-acyl taurines that activates TRP ion channels. Biochemistry 45(30) 9007-9015 (2006).
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