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Structural insight into the binding interactions of modeled structure of Arabidopsis thaliana urease with urea: an in silico study.

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Urease (EC 3.5.1.5., urea amidohydrolase) catalyzes the hydrolysis of urea to ammonia and carbon dioxide. Urease is present to a greater abundance in plants and plays significant role related to nitrogen recycling from urea. But little is known about the structure and function of the urease derived

CsNIP2;1 is a Plasma Membrane Transporter from Cucumis sativus that Facilitates Urea Uptake When Expressed in Saccharomyces cerevisiae and Arabidopsis thaliana.

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Urea is an important source of nitrogen (N) for the growth and development of plants. It occurs naturally in soils, is the major N source in agricultural fertilizers and is an important N metabolite in plants. Therefore, the identification and characterization of urea transporters in higher plants

A defect in the yeast plasma membrane urea transporter Dur3p is complemented by CpNIP1, a Nod26-like protein from zucchini (Cucurbita pepo L.), and by Arabidopsis thaliana delta-TIP or gamma-TIP.

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Dur3 encodes the yeast plasma membrane urea transporter and Deltadur3 mutants are unable to grow on media containing low concentrations of urea as sole nitrogen source. Complementation of the Deltadur3 mutant line with expression libraries generated from whole Arabidopsis thaliana seedlings or from

Low CO2 induces urea cycle intermediate accumulation in Arabidopsis thaliana.

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The non-proteinogenic amino acid ornithine links several stress response pathways. From a previous study we know that ornithine accumulates in response to low CO2. To investigate ornithine accumulation in plants, we shifted plants to either low CO2 or low light. Both conditions increased carbon

Retrograde plastid redox signals in the expression of nuclear genes for chloroplast proteins of Arabidopsis thaliana.

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Excitation imbalances between photosystem I and II generate redox signals in the thylakoid membrane of higher plants which induce acclimatory changes in the structure of the photosynthetic apparatus. They affect the accumulation of reaction center and light-harvesting proteins as well as

Identification and characterization of proteins involved in rice urea and arginine catabolism.

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Rice (Oryza sativa) production relies strongly on nitrogen (N) fertilization with urea, but the proteins involved in rice urea metabolism have not yet been characterized. Coding sequences for rice arginase, urease, and the urease accessory proteins D (UreD), F (UreF), and G (UreG) involved in urease

Early cytokinin response proteins and phosphoproteins of Arabidopsis thaliana identified by proteome and phosphoproteome profiling.

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Cytokinins are plant hormones involved in regulation of diverse developmental and physiological processes in plants whose molecular mechanisms of action are being intensely researched. However, most rapid responses to cytokinin signals at the proteomic and phosphoproteomic levels are unknown. Early

An insight into the folding and stability of Arabidopsis thaliana SOG1 transcription factor under salinity stress in vitro.

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The present study describes the biophysical characterization of Arabidopsis thaliana SOG1 (SUPPRESSOR OF GAMMA RESPONSE 1) protein, a NAC domain transcription factor which plays central role in DNA damage response pathway, under salinity stress in vitro. Tryptophan fluorescence studies using

Ring finger motif of Arabidopsis thaliana COP1 defines a new class of zinc-binding domain.

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The COP1 gene of Arabidopsis thaliana encodes a protein mediating the switch between the two developmental pathways utilized in light and darkness. A cysteine-rich motif identified the COP1 protein as a member of a group of regulatory proteins which share the amino acid motif Cys-X-X-Cys-loop

New Urea Derivatives Are Effective Anti-senescence Compounds Acting Most Likely via a Cytokinin-Independent Mechanism.

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Stress-induced senescence is a global agro-economic problem. Cytokinins are considered to be key plant anti-senescence hormones, but despite this practical function their use in agriculture is limited because cytokinins also inhibit root growth and development. We explored new cytokinin analogs by

Modeling the Metabolism of Arabidopsis thaliana: Application of Network Decomposition and Network Reduction in the Context of Petri Nets.

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Motivation:Arabidopsis thaliana is a well-established model system for the analysis of the basic physiological and metabolic pathways of plants. Nevertheless, the system is not yet fully understood, although many mechanisms are described, and information for many processes exists. However, the

Expression in Escherichia coli and in vitro refolding of the plant transcription factor Arabidopsis thaliana RGL3.

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Recombinant Arabidopsis thaliana (At) RGL-3, using two vectors pMAL-c2 and pET 21, was expressed as inclusion bodies in Escherichia coli under a range of temperature conditions. Only low levels (8-12% of total protein) of soluble protein were produced. The "soluble" fraction was shown by native PAGE

Chromosomal proteins of Arabidopsis thaliana.

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In plants with large genomes, each of the classes of the histones (H1, H2A, H2B, H3 and H4) are not unique polypeptides, but rather families of closely related proteins that are called histone variants. The small genome and preponderance of single-copy DNA in Arabidopsis thaliana has led us to ask

Probing selected structural regions in the secreted phospholipase A₂ from Arabidopsis thaliana for their impact on stability and activity.

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In contrast to the well characterized secreted phospholipases A2 (sPLA2) from animals, their homologues from plants have been less explored. Their production in purified form is more difficult, and no data on their stability are known. In the present paper, different variants of the sPLA2 isoform α

Prevention of aggregation after refolding by balanced stabilization-destabilization: production of the Arabidopsis thaliana protein APG8a (At4g21980) for NMR structure determination.

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The gene coding for APG8a (At4g21980), a protein from Arabidopsis thaliana, is involved in the autophagy process. The protein is an interesting candidate for structure determination by NMR spectroscopy. Toward this end, APG8a fused to an N-terminal His-tag has been expressed in Escherichia coli

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