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Review article - Peer-reviewed, 2009

Structural and evolutionary aspects of thioredoxin reductases in photosynthetic organisms

Jacquot, Jean-Pierre; Eklund, Hans; Rouhier, Nicolas; Schuermann, Peter

Abstract

Thioredoxins (Trxs) are small oxidoreductases that are involved in redox homeostasis and are found in large numbers in the subcellular compartments of eukaryotic plant cells, including the chloroplasts. Also present in chloroplasts are two forms of thioredoxin reductase (TR), which use either NADPH or ferredoxin as an electron donor. In other compartments, two additional TR forms also use NADPH: one is distributed in all photosynthetic organisms and is similar to prokaryotic enzymes, whereas the other is restricted to algae and is similar to mammalian selenoproteins. Here, we review current knowledge of the different forms of TRs across organisms and discuss the possible evolutionary fate of this class of enzymes, which provide an example of convergent functional evolution.

Published in

Trends in Plant Science
2009, Volume: 14, number: 6, pages: 336-343
Publisher: ELSEVIER SCIENCE LONDON

      SLU Authors

    • Eklund, Hans

      • Department of Molecular Biology, Swedish University of Agricultural Sciences

    UKÄ Subject classification

    Botany

    Publication identifier

    DOI: https://doi.org/10.1016/j.tplants.2009.03.005

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/49684