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Genome‐wide analysis and transcriptional regulation of the typical and atypical thioredoxins in Arabidopsis thaliana

Chibani, Kamel and Pucker, Boas and Dietz, Karl‐Josef and Cavanagh, Amanda (2021) 'Genome‐wide analysis and transcriptional regulation of the typical and atypical thioredoxins in Arabidopsis thaliana.' FEBS Letters, 595 (21). pp. 2715-2730. ISSN 0014-5793

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Abstract

Thioredoxins (TRXs), a large subclass of ubiquitous oxidoreductases, are involved in thiol redox regulation. Here, we performed a comprehensive analysis of TRXs in the Arabidopsis thaliana genome, revealing 41 genes encoding 18 typical and 23 atypical TRXs, and 6 genes encoding thioredoxin reductases (TRs). The high number of atypical TRXs indicates special functions in plants that mostly await elucidation. We identified an atypical class of thioredoxins called TRX-c in the genomes of photosynthetic eukaryotes. Localized to the chloroplast, TRX-c displays atypical CPLC, CHLC and CNLC motifs in the active sites. In silico analysis of the transcriptional regulations of TRXs revealed high expression of TRX-c in leaves and strong regulation under cold, osmotic, salinity and metal ion stresses.

Item Type: Article
Uncontrolled Keywords: Arabidopsis; molecular evolution; oxidoreductase; regulation; thioredoxins
Divisions: Faculty of Science and Health
Faculty of Science and Health > Life Sciences, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 21 Oct 2021 19:52
Last Modified: 24 Sep 2022 01:00
URI: http://repository.essex.ac.uk/id/eprint/31367

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