NADPH Thioredoxin Reductase C and Thioredoxins Act Concertedly in Seedling Development1[OPEN]
نویسندگان
چکیده
Valle Ojeda, Juan Manuel Pérez-Ruiz, Maricruz González, Victoria A. Nájera, Mariam Sahrawy, Antonio J. Serrato, Peter Geigenberger, and Francisco Javier Cejudo a,2 Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla and Consejo Superior de Investigaciones Científicas, 41092 Seville, Spain Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, 18160 Granada, Spain Ludwig-Maximilians-Universität München, Department Biologie I, 82152 Martinsried, Germany
منابع مشابه
Replacement of threonine-55 with glycine decreases the reduction rate of OsTrx20 by glutathione
Thioredoxins (Trxs) are small ubiquitous oxidoreductase proteins with two redox-active Cys residues in a conserved active site (WCG/PPC) that regulate numerous target proteins via thiol/disulfide exchanges in the cells of prokaryotes and eukaryotes. The isoforms OsTrx23 with a typical active site (WCGPC) and OsTrx20 with an atypical active site (WCTPC) are two Trx h- type isoforms in rice that ...
متن کاملNADPH Thioredoxin Reductase C and Thioredoxins Act Concertedly in Seedling Development.
Thiol-dependent redox regulation of enzyme activity plays a central role in the rapid acclimation of chloroplast metabolism to ever-fluctuating light availability. This regulatory mechanism relies on ferredoxin reduced by the photosynthetic electron transport chain, which fuels reducing power to thioredoxins (Trxs) via a ferredoxin-dependent Trx reductase. In addition, chloroplasts harbor an NA...
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Thioredoxins (Trxs) play a relevant role in thiol-dependent redox regulation, which allows the rapid adaptation of chloroplast metabolism to unpredictable environmental conditions. In chloroplasts, Trxs use reducing equivalents provided by photoreduced ferredoxin (Fdx) via the action of a ferredoxin-thioredoxin reductase (FTR), thus linking redox regulation to light. In addition, these organell...
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The ferredoxin-thioredoxin reductase variable subunit gene of Anacystis nidulans was cloned, and its nucleotide sequence was determined. A single-copy 219-bp open reading frame encoded a protein of 73 amino acid residues, with a calculated Mr of 8,400. The monocistronic transcripts were represented in a 400-base and a less abundant 300-base mRNA form.
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Heart tissue contains two different thioredoxins. One is a specific mitochondrial protein and is best prepared from pre-isolated, intact heart mitochondria (mt-thioredoxin) whereas mitochondria-depleted tissue homogenates contain the major cellular thioredoxin of cytoplasmic origin (c-thioredoxin). Both heat-stable proteins are clearly differentiated chromatographically. They exhibit slightly d...
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تاریخ انتشار 2017