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Turkish Journal of Biology

DOI

10.3906/biy-1606-54

Abstract

Cytochrome P450 monooxygenases are one of the largest heme-containing protein groups, and the majority of them catalyze hydroxylation reactions dependent on nicotinamide adenine dinucleotide phosphate and oxygen. Cytochrome P450 (CYP) enzymes function in a wide range of monooxygenation reactions essential in primary and secondary metabolism in plants. Camellia sinensis (L.) Kuntze is a commercially and economically valuable plant due to its medicinally important secondary metabolites and as a beloved beverage. Cytochrome P450 monooxygenases play a significant role in the biosynthesis of a variety of secondary metabolites in tea. Although the biosynthesis of secondary metabolites has been investigated in detail, there have been limited studies conducted on identifying the genetic mechanisms of CYP-catalyzed secondary metabolic pathways in the C. sinensis (tea) plant. In our study, we characterized a putative C. sinensis (L.) Kuntze cytochrome P450 monooxygenase gene (Csp450), which has 1759 bp full-length cDNA with 49 bp of 5$^{'}$ and 183 bp of 3$^{'}$ untranslated regions. The CDS of the gene is 1527 bp and 508 amino acids in length. BLAST results of the deduced amino acid sequence revealed a high similarity with the CYP704C1-like superfamily. Preharvest period gene expression analysis from May, July, and September did not show any difference.

Keywords

Camellia sinensis (L.) Kuntze (tea), cytochrome P450 monooxygenase, molecular and in silico cloning, seasonal gene expression

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Last Page

11

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