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cytochrome c/arabidopsis thaliana
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Pàgina 1 des de 102 resultats
Characterization and expression of the genes for cytochrome c oxidase subunit VIb (COX6b) from rice and Arabidopsis thaliana.
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Many of the subunits of cytochrome c oxidase (COX) in the mitochondria of higher plants are encoded by nuclear genes. These genes are less characterized compared to mitochondrial-encoded genes. We previously isolated a cDNA encoding COX6b (designated OsCOX6b1 in this study) from the rice nuclear
New Arabidopsis thaliana cytochrome c partners: a look into the elusive role of cytochrome c in programmed cell death in plants.
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Programmed cell death is an event displayed by many different organisms along the evolutionary scale. In plants, programmed cell death is necessary for development and the hypersensitive response to stress or pathogenic infection. A common feature in programmed cell death across organisms is the
Histone chaperone activity of Arabidopsis thaliana NRP1 is blocked by cytochrome c.
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Higher-order plants and mammals use similar mechanisms to repair and tolerate oxidative DNA damage. Most studies on the DNA repair process have focused on yeast and mammals, in which histone chaperone-mediated nucleosome disassembly/reassembly is essential for DNA to be accessible to repair
Identification of regulatory elements involved in expression and induction by sucrose and UV-B light of the Arabidopsis thaliana COX5b-2 gene, encoding an isoform of cytochrome c oxidase subunit 5b.
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The promoter sequences required for expression of the Arabidopsis thaliana COX5b-2 gene, encoding an isoform of cytochrome c oxidase subunit 5b, were analyzed using plants transformed with deleted and mutagenized forms of the promoter fused to gus. A 1000-bp promoter fragment produces expression in
Crystal structure of oxidized cytochrome c(6A) from Arabidopsis thaliana.
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Compared with algal and cyanobacterial cytochrome c(6), cytochrome c(6A) from higher plants contains an additional loop of 12 amino acid residues. We have determined the first crystal structure of cytochrome c(6A) from Arabidopsis thaliana at 1.5 Angstrom resolution in order to help elucidate its
Structure and molecular evolutionary analysis of a plant cytochrome c gene: surprising implications for Arabidopsis thaliana.
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We have isolated a cytochrome c gene from Arabidopsis thaliana (cv. Columbia), which is the first cytochrome c gene to be cloned from a higher plant. Genomic DNA blot analysis indicates that there is only one copy of cytochrome c in Arabidopsis. The gene consists of three exons separated by two
The leader intron of Arabidopsis thaliana genes encoding cytochrome c oxidase subunit 5c promotes high-level expression by increasing transcript abundance and translation efficiency.
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The involvement of regions located upstream of the translation start site in the expression of two Arabidopsis thaliana nuclear COX5c genes encoding subunit 5c of mitochondrial cytochrome c oxidase has been analysed. It was observed that these regions, which include a leader intron, direct the
The role of a disulfide bridge in the stability and folding kinetics of Arabidopsis thaliana cytochrome c(6A).
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Cytochrome c(6A) is a eukaryotic member of the Class I cytochrome c family possessing a high structural homology with photosynthetic cytochrome c(6) from cyanobacteria, but structurally and functionally distinct through the presence of a disulfide bond and a heme mid-point redox potential of +71mV
Characterization of Arabidopsis thaliana genes encoding functional homologues of the yeast metal chaperone Cox19p, involved in cytochrome c oxidase biogenesis.
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The Arabidopsis thaliana genome contains two nearly identical genes which encode proteins showing similarity with the yeast metal chaperone Cox19p, involved in cytochrome c oxidase biogenesis. One of these genes (AtCOX19-1) produces two transcript forms that arise from an alternative splicing event
Arabidopsis thaliana Hcc1 is a Sco-like metallochaperone for CuA assembly in Cytochrome c Oxidase.
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The assembly of the CuA site in Cytochrome c Oxidase (COX) is a critical step for aerobic respiration in COX-dependent organisms. Several gene products have been associated with the assembly of this copper site, the most conserved of them belonging to the Sco family of proteins, which
RNA editing of cytochrome c maturation transcripts is responsive to the energy status of leaf cells in Arabidopsis thaliana.
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Overexpression of AtPAP2, a phosphatase located on the outer membranes of chloroplasts and mitochondria, leads to higher energy outputs from these organelles. AtPAP2 interacts with seven MORF proteins of the editosome complex. RNA-sequencing analysis showed that the editing degrees of most sites did
l-Galactono-gamma-lactone dehydrogenase from Arabidopsis thaliana, a flavoprotein involved in vitamin C biosynthesis.
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l-Galactono-1,4-lactone dehydrogenase (GALDH; ferricytochrome c oxidoreductase; EC 1.3.2.3) is a mitochondrial flavoenzyme that catalyzes the final step in the biosynthesis of vitamin C (l-ascorbic acid) in plants. In the present study, we report on the biochemical properties of recombinant
Disruption of the CYTOCHROME C OXIDASE DEFICIENT1 gene leads to cytochrome c oxidase depletion and reorchestrated respiratory metabolism in Arabidopsis.
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Cytochrome c oxidase is the last respiratory complex of the electron transfer chain in mitochondria and is responsible for transferring electrons to oxygen, the final acceptor, in the classical respiratory pathway. The essentiality of this step makes it that depletion in complex IV leads to
Refined method to study the posttranslational regulation of alternative oxidases from Arabidopsis thaliana in vitro.
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In isolated membranes, posttranslational regulation of quinol oxidase activities can only be determined simultaneously for all oxidases - quinol oxidases as well as cytochrome c oxidases - because of their identical localization. In this study, a refined method to determine the specific activity of
Communication between (L)-galactono-1,4-lactone dehydrogenase and cytochrome c.
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l-galactono-1,4-lactone dehydrogenase (GALDH) catalyzes the terminal step of vitamin C biosynthesis in plant mitochondria. Here we investigated the communication between Arabidopsis thaliana GALDH and its natural electron acceptor cytochrome c (Cc). Using laser-generated radicals we observed the
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