Abstract
Cytochromes P450 of the CYP74 family play a key role in the lipoxygenase cascade generating oxylipins (products of polyunsaturated fatty acid oxidation). The CYP74 family includes allene oxide synthases, hydroperoxide lyases, divinyl ether synthases, and epoxyalcohol synthases. In this work, we cloned the CYP74A88 gene from the Japanese buttercup (Ranunculus japonicus) and studied the properties of the encoded recombinant protein. The CYP74A88 enzyme specifically converts linoleic acid 9-and 13-hydroperoxides to oxiranyl carbinols 9,10-epoxy-11-hydroxy-12-octadecenoic acid and 11-hydroxy-12,13-epoxy-9-octadecenoic acid, respectively, which was confirmed by GC-MS analysis and kinetic studies. Therefore, the CYP74A88 enzyme is a specific epoxyalcohol synthase.
Similar content being viewed by others
Abbreviations
- GC-MS:
-
gas chromatography/mass spectrome-try
- HPLC:
-
high-performance liquid chromatography
- 9-H(P)OD:
-
(9S,10E,12Z)-9-hydro(pero)xy-10,12-octadeca-dienoic acid
- 9-H(P)OT:
-
(9S,10E,12Z,15Z)-9-hydro(pero)xy-10,12,15-octadecatrienoic acid
- 13-H(P)OD:
-
(9Z,11E,13S)-13-hydro(pero)xy-9,11-octadecadienoic acid
- 13-H(P)OT:
-
(9Z,11E,13S,15Z)-13-hydro(pero)xy-9,11,15-octadecatrienoic acid
- Me:
-
methyl
- ORF:
-
open reading frame
- TMS:
-
trimethylsilyl
References
Blee, E. (1998) Phytooxylipins and plant defense reactions, Prog. Lipid Res., 37, 33–72.
Grechkin, A. N. (1998) Recent developments in biochem–istry of the plant lipoxygenase pathway, Prog. Lipid Res., 37, 317–352.
Grechkin, A. N. (2002) Hydroperoxide lyase and divinyl ether synthase, Prostaglandins Other Lipid Mediat., 68–69, 457–470.
Stumpe, M., and Feussner, I. (2006) Formation of oxylip–ins by CYP74 enzymes, Phytochem. Rev., 5, 347–357.
Brash, A. R. (2009) Mechanistic aspects of CYP74 allene oxide synthases and related cytochrome P450 enzymes, Phytochemistry, 70, 1522–1531.
Toporkova, Y. Y., Smirnova, E. O., Gorina, S. S., Mukhtarova, L. S., and Grechkin, A. N. (2018) Detection of the first higher plant epoxyalcohol synthase: molecular cloning and characterization of the CYP74M2 enzyme of spike moss Selaginella moellendorffii, Phytochemistry, 156, 73–82.
Toporkova, Y. Y., Gorina, S. S., Bessolitsyna, E. K., Smirnova, E. O., Fatykhova, V. S., Bruhlmann, F., Ilyina, T. M., Mukhtarova, L. S., and Grechkin, A. N. (2018) Double function hydroperoxide lyases/epoxyalcohol syn–thases (CYP74C) of higher plants: identification and con–version into allene oxide synthases by site–directed mutage–nesis, Biochim. Biophys. Acta, 1863, 369–378.
Nelson, D. R., Goldstone, J. V., and Stegeman, J. J. (2013) The cytochrome P450 genesis locus: the origin and evolu–tion of animal cytochrome P450s, Philos. Trans. R. Soc. Lond. B Biol. Sci., 368, 20120474.
Lee, D.–S., Nioche, P., Hamberg, M., and Raman, C. S. (2008) Structural insights into the evolutionary paths of oxylipin biosynthesis enzymes, Nature, 455, 363–370.
Toporkova, Y. Y., Fatykhova, V. S., Gogolev, Y. V., Khairutdinov, B. I., Mukhtarova, L. S., and Grechkin, A. N. (2017) Epoxyalcohol synthase of Ectocarpus siliculosus. First CYP74–related enzyme of oxylipin biosynthesis in brown algae, Biochim. Biophys. Acta, 1862, 167–175.
Toporkova, Y. Y., Gorina, S. S., Mukhitova, F. K., Hamberg, M., Ilyina, T. M., Mukhtarova, L. S., and Grechkin, A. N. (2017) Identification of CYP443D1 (CYP74 clan) of Nematostella vectensis as a first cnidarian epoxyalcohol synthase and insights into its catalytic mech–anism, Biochim. Biophys. Acta, 1862, 1099–1109.
Wilson, R. A., Gardner, H. W., and Keller, N. P. (2001) Cultivar–dependent expression of a maize lipoxygenase responsive to seed infesting fungi, Mol. Plant Microbe Iinteract., 14, 980–987.
Chechetkin, I. R., Osipova, E. V., Tarasova, N. B., Mukhitova, F. K., Hamberg, M., Gogolev, Y. V., and Grechkin, A. N. (2009) Specificity of oxidation of linoleic acid homologs by plant lipoxygenases, Biochemistry (Moscow), 74, 855–861.
Glover, D. M. (1988) Gene Cloning. The Mechanics of DNA Manipulation, Springer.
Maniatis, T., Fritsch, E., and Sambrook, J. (1984) The Methods of Genetic Engineering. Molecular Cloning [Russian translation], Mir, Moscow.
Schenkman, J. B., and Jansson, I. (2006) Spectral analyses of cytochromes P450, Meth. Mol. Biol., 320, 11–18.
Grechkin, A. N., Bruhlmann, F., Mukhtarova, L. S., Gogolev, Y. V., and Hamberg, M. (2006) Hydroperoxide lyases (CYP74C and CYP74B) catalyze the hemolytic iso–merization of fatty acid hydroperoxides into hemiacetals, Biochim. Biophys. Acta, 1761, 1419–1428.
Gogolev, Y. V., Gorina, S. S., Gogoleva, N. E., Toporkova, Y. Y., Chechetkin, I. R., and Grechkin, A. N. (2012) Green leaf divinyl ether synthase: gene detection, molecular cloning and identification of a unique CYP74B subfamily member, Biochim. Biophys. Acta, 1821, 287–294.
Mukhtarova, L. S., Mukhitova, F. K., Gogolev, Y. V., and Grechkin, A. N. (2011) Hydroperoxide lyase cascade in pea seedlings: non–volatile oxylipins and their age and stress dependent alterations, Phytochemistry, 72, 356–364.
Hamberg, M., and Hamberg, G. (1996) Peroxygenase–cat–alyzed fatty acid epoxidation in cereal seeds (sequential oxidation of linoleic acid into 9(S),12(S),13(S)–trihydroxy–10(E)–octadecenoic acid), Plant Physiol., 110, 807–815.
Hamberg, M., and Hamberg, G. (1990) Hydroperoxide–dependent epoxidation of unsaturated fatty acids in the broad bean (Vicia faba L.), Arch. Biochem. Biophys., 283, 409–416.
Blee, E., Wilcox, A. L., Marnett, L. J., and Schuber, F. (1993) Mechanism of reaction of fatty acid hydroperoxides with soybean peroxygenase, J. Biol. Chem., 268, 1708–1715.
Hamberg, M., and Olsson, U. (2011) Efficient and specific conversion of 9–lipoxygenase hydroperoxides in the beet–root, formation of pinellic acid, Lipids, 46, 873–878.
Gardner, H. W., Weisleder, D., and Nelson, E. C. (1984) Acid catalysis of a linoleic acid hydroperoxide: formation of epoxides by an intramolecular cyclization of the hydroper–oxide group, J. Org. Chem., 49, 508–515.
Gardner, H. W., Nelson, E. C., Tjarks, L. W., and England, R. E. (1984) Acid–catalyzed transformation of 13(S)–hydroperoxylinoleic acid into epoxyhydroxyoctadecenoic and trihydroxyoctadecenoic acids, Chem. Phys. Lipids, 35, 87–101.
Gardner, H. W., Kleiman, R., and Weisleder, D. (1974) Homolytic decomposition of linoleic acid hydroperoxide: identification of fatty acid products, Lipids, 9, 696–706.
Gardner, H. W. (1975) Decomposition of linoleic acid hydroperoxides. Enzymic reactions compared with nonen–zymic, J. Agr. Food Chem., 23, 129–136.
Gardner, H. W., and Jursinic, P. A. (1981) Degradation of linoleic acid hydroperoxides by a cysteine FeCl3 catalyst as a model for similar biochemical reactions: I. Study of oxy–gen requirement, catalyst and effect of pH, Biochim. Biophys. Acta, 665, 100–112.
Gardner, H. W., and Kleiman, R. (1981) Degradation of linoleic acid hydroperoxides by a cysteine FeCl3 catalyst as a model for similar biochemical reactions: II. Specificity in formation of fatty acid epoxides, Biochim. Biophys. Acta, 665, 113–125.
Dix, T. A., and Marnett, L. J. (1985) Conversion of linole–ic acid hydroperoxide to hydroxy, keto, epoxyhydroxy, and trihydroxy fatty acids by hematin, J. Biol. Chem., 260, 5351–5357.
Gardner, H. W. (1989) Oxygen radical chemistry of polyun–saturated fatty acids, Free Rad. Biol. Med., 7, 65–86.
Hamberg, M., and Gotthammar, B. (1973) A new reaction of unsaturated fatty acid hydroperoxides: formation of 11–hydroxy–12,13–epoxy–9–octadecenoic acid from 13–hydroperoxy–9,11–octadecadienoic acid, Lipids, 8, 737–744.
Gorina, S. S., Smirnova, E.O., Mukhtarova, L. S., Toporkova, Y. Y., and Grechkin, A. N. (2018) Conversion of tomato allene oxide synthase LeAOS3 (CYP74C3) into epoxyalcohol synthase by site–directed mutagenesis, Dokl. Biochem. Biophys, 483, 329–332.
Author information
Authors and Affiliations
Corresponding author
Additional information
Published in Russian in Biokhimiya, 2019, Vol. 84, No. 2, pp. 269–280.
Rights and permissions
About this article
Cite this article
Toporkova, Y.Y., Fatykhova, V.S., Gorina, S.S. et al. Epoxyalcohol Synthase RjEAS (CYP74A88) from the Japanese Buttercup (Ranunculus japonicus): Cloning and Characterization of Catalytic Properties. Biochemistry Moscow 84, 171–180 (2019). https://doi.org/10.1134/S0006297919020081
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0006297919020081