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alkaline phosphatase/schaumkressen
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The DNA-compacting protein DCP68 from soybean chloroplasts is ferredoxin:sulfite reductase and co-localizes with the organellar nucleoid.
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The multiple copies of the chloroplast genome (plastome) are condensed and organized into nucleoids by a set of proteins. One of these, the DNA-binding protein DCP68 from soybean, has previously been shown to compact DNA and to inhibit DNA synthesis in vitro. N-terminal amino acid analysis and the
PKL01, an Ndr kinase homologue in plant, shows tyrosine kinase activity.
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Protein phosphorylation by protein tyrosine (Tyr) kinases plays important roles in a variety of signalling pathways in cell growth, differentiation and oncogenesis in animals. Despite the absence of classical Tyr kinases in plants, a similar ratio of phosphotyrosine residues in phosphorylated
Promotion of metal accumulation in nodule of Astragalus sinicus by the expression of the iron-regulated transporter gene in Mesorhizobium huakuii subsp. rengei B3.
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Toxic metal contamination in agricultural fields is an important worldwide problem. In previous studies, we developed a bioremediation system based on the symbiosis between Astragalus sinicus and the recombinant rhizobium, Mesorhizobium huakuii subsp. rengei B3 developed by overexpressing a
A new method for enzymatic preparation of isopentenyladenine-type and trans-zeatin-type cytokinins with radioisotope-labeling.
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We describe a new enzymatic reaction method for the preparation of the radioisotope-labeled cytokinins isopentenyladenine (iP), trans-zeatin (tZ), and their ribosides. The method is based on the three enzyme activities of an adenylate isopentenyltransferase (IPT; EC 2.5.1.27) from Arabidopsis
Determination of transmembrane topology of an inward-rectifying potassium channel from Arabidopsis thaliana based on functional expression in Escherichia coli.
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We report here that the inward-rectifying potassium channels KAT1 and AKT2 were functionally expressed in K+ uptake-deficient Escherichia coli. Immunological assays showed that KAT1 was translocated into the cell membrane of E. coli. Functional assays suggested that KAT1 was inserted topologically
Transmembrane topology of FRO2, a ferric chelate reductase from Arabidopsis thaliana.
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Iron uptake in Arabidopsis thaliana is mediated by ferric chelate reductase FRO2, a transmembrane protein belonging to the flavocytochrome b family. There is no high resolution structural information available for any member of this family. We have determined the transmembrane topology of FRO2
Lipid transfer protein 1 is a possible allergen in Arabidopsis thaliana.
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BACKGROUND
The Arabidopsis thaliana genome was recently fully sequenced, and this plant is now considered as the most useful model to study the effects of genetic engineering. The aim of the present study was to identify A. thaliana IgE-binding molecules and to localize their genes in order to
Evidence in support of a four transmembrane-pore-transmembrane topology model for the Arabidopsis thaliana Na+/K+ translocating AtHKT1 protein, a member of the superfamily of K+ transporters.
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The Arabidopsis thaliana AtHKT1 protein, a Na(+)/K(+) transporter, is capable of mediating inward Na(+) currents in Xenopus laevis oocytes and K(+) uptake in Escherichia coli. HKT1 proteins are members of a superfamily of K(+) transporters. These proteins have been proposed to contain eight
Phosphorylation of a bifunctional enzyme, 6-phosphofructo-2-kinase/fructose-2,6-bisphosphate 2-phosphatase, is regulated physiologically and developmentally in rosette leaves of Arabidopsis thaliana.
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The phosphorylation status of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphate 2-phosphatase (EC 2.7.1.105/ EC 3.1.3.46) in rosette leaves of Arabidopsis was examined. Immunoblotting with specific antisera detected 96-kDa and 92-kDa bands in the crude protein extracts from rosette leaves of
Feasible and reliable quantification of mRNA in Arabidopsis thaliana using optical thin-film biosensor chips.
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mRNA quantification is very important in molecular biological researches. Traditional spectrophotometric method cannot distinguish DNA, rRNA and tRNA species from mRNA. Northern blot can be used for mRNA quantification but is known to be time consuming. To rapidly detect mRNA levels, we developed an
Variation in the Subcellular Localization and Protein Folding Activity among Arabidopsis thaliana Homologs of Protein Disulfide Isomerase.
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Protein disulfide isomerases (PDIs) catalyze the formation, breakage, and rearrangement of disulfide bonds to properly fold nascent polypeptides within the endoplasmic reticulum (ER). Classical animal and yeast PDIs possess two catalytic thioredoxin-like domains (a, a') and two non-catalytic domains
AtPIP5K1, an Arabidopsis thaliana phosphatidylinositol phosphate kinase, synthesizes PtdIns(3,4)P(2) and PtdIns(4,5)P(2) in vitro and is inhibited by phosphorylation.
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PtdIns phosphate kinases (PIPkins), which generate PtdInsP(2) isomers, have been classified into three subfamilies that differ in their substrate specificities. We demonstrate here that the previously identified AtPIP5K1 gene from Arabidopsis thaliana encodes a PIPkin with dual substrate specificity
Structure, evolution, and expression of the two invertase gene families of rice.
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Invertases catalyze the irreversible hydrolysis of sucrose to glucose and fructose. Plants contain two unrelated families of these enzymes: acid forms that derive from periplasmic invertases of eubacteria and are found in cell wall and vacuole, and neutral/alkaline forms evolved from the cytosolic
Detection and Visualization of Specific Gene Transcripts by in situ RT-PCR in Nematode-Infected Arabidopsis Root Tissue.
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This protocol describes an effective method of in situ RT-PCR that was developed to localize specific gene expression directly in thin cross-sections of nematode feeding sites induced by the cyst nematode Heterodera schachtii (H. schachtii) or the root-knot nematode Meloidogyne incognita (M.
Towards the identification of late-embryogenic-abundant phosphoproteome in Arabidopsis by 2-DE and MS.
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Late-embryogenesis-abundant (LEA) proteins accumulate as plant seeds desiccate and also in vegetative organs during periods of stress. They are predicted to play a role in plant stress tolerance. In the present study, we have initiated the characterization of phosphorylated LEA proteins present in
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