The thioredoxin h system of higher plants

In plants, thioredoxins h are encoded by a multigenic family of genes (eight in Arabidopsis thaliana, at least five in Populus sp.). The multiplicity of these isoforms raises the question of their specificity. This review focuses on thioredoxins h in two plant models: Arabidopsis and poplar. Thiored...

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Bibliographic Details
Published in:Plant Physiology and Biochemistry 2004-04, Vol.42 (4), p.265-271
Main Authors: Gelhaye, Eric, Rouhier, Nicolas, Jacquot, Jean-Pierre
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Arabidopsis - metabolism
Biochemistry, Molecular Biology
Biological and medical sciences
Cell biochemistry
Cell physiology
Fundamental and applied biological sciences. Psychology
Glutaredoxin
Life Sciences
Molecular Sequence Data
Multigene Family
Phylogeny
Plant physiology and development
Plant Proteins - genetics
Plant Proteins - metabolism
Populus - metabolism
Protein Isoforms
Thiol reduction
Thioredoxin
Thioredoxin h
Thioredoxins - genetics
Thioredoxins - metabolism
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Summary:In plants, thioredoxins h are encoded by a multigenic family of genes (eight in Arabidopsis thaliana, at least five in Populus sp.). The multiplicity of these isoforms raises the question of their specificity. This review focuses on thioredoxins h in two plant models: Arabidopsis and poplar. Thioredoxins h can be divided into three different subgroups according to the analysis of their primary structure. This paper describes the biochemical properties of each subgroup. Recent data in the field indicate that subgroup members differ by their subcellular localization as well as their reduction pathways suggesting specific functions for each subgroup. The development of proteomic tools has also increased considerably the number of potential thioredoxin targets, showing the importance of thioredoxins h in plants.
ISSN:0981-9428
1873-2690
DOI:10.1016/j.plaphy.2004.03.002