Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress

Dietz K-J, Hell R (2015)
Biological chemistry 396(5): 483-494.

Journal Article | Published | English

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In photosynthesizing chloroplasts, rapidly changing energy input, intermediate generation of strong reductants as well as oxidants and multiple participating physicochemical processes and pathways, call for efficient regulation. Coupling redox information to protein function via thiol modifications offers a powerful mechanism to activate, down-regulate and coordinate interdependent processes. Efficient thiol switching of target proteins involves the thiol-disulfide redox regulatory network, which is highly elaborated in chloroplasts. This review addresses the features of this network. Its conditional function depends on specificity of reduction and oxidation reactions and pathways, thiol redox buffering, but also formation of heterogeneous milieus by microdomains, metabolite gradients and macromolecular assemblies. One major player is glutathione. Its synthesis and function is under feedback redox control. The number of thiol-controlled processes and involved thiol switched proteins is steadily increasing, e.g., in tetrapyrrole biosynthesis, plastid transcription and plastid translation. Thus chloroplasts utilize an intricate and versatile redox regulatory network for intraorganellar and retrograde communication.
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Dietz K-J, Hell R. Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress. Biological chemistry. 2015;396(5):483-494.
Dietz, K. - J., & Hell, R. (2015). Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress. Biological chemistry, 396(5), 483-494.
Dietz, K. - J., and Hell, R. (2015). Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress. Biological chemistry 396, 483-494.
Dietz, K.-J., & Hell, R., 2015. Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress. Biological chemistry, 396(5), p 483-494.
K.-J. Dietz and R. Hell, “Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress”, Biological chemistry, vol. 396, 2015, pp. 483-494.
Dietz, K.-J., Hell, R.: Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress. Biological chemistry. 396, 483-494 (2015).
Dietz, Karl-Josef, and Hell, Rüdiger. “Thiol switches in redox regulation of chloroplasts: balancing redox state, metabolism and oxidative stress”. Biological chemistry 396.5 (2015): 483-494.
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Products of lipid, protein and RNA oxidation as signals and regulators of gene expression in plants.
Chmielowska-Bak J, Izbianska K, Deckert J., Front Plant Sci 6(), 2015
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