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adenosine/arabidopsis thaliana
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Flux control of sulphate assimilation in Arabidopsis thaliana: adenosine 5'-phosphosulphate reductase is more susceptible than ATP sulphurylase to negative control by thiols.
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The effect of externally applied L-cysteine and glutathione (GSH) on ATP sulphurylase and adenosine 5'-phosphosulphate reductase (APR), two key enzymes of assimilatory sulphate reduction, was examined in Arabidopsis thaliana root cultures. Addition of increasing L-cysteine to the nutrient solution
Deficiency of adenosine kinase activity affects the degree of pectin methyl-esterification in cell walls of Arabidopsis thaliana.
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Pectin methyl-esterification is catalysed by S-adenosyl-L: -methionine (SAM)-dependent methyltransferases. As deficiency in adenosine kinase (ADK; EC 2.7.1.20) activity impairs SAM recycling and utilization, we investigated the relationship between ADK-deficiency and the degree of pectin
Crystallization and preliminary X-ray crystallographic analysis of adenosine 5'-monophosphate deaminase (AMPD) from Arabidopsis thaliana in complex with coformycin 5'-phosphate.
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Adenosine 5'-monophosphate deaminase (AMPD) is a eukaryotic enzyme that converts adenosine 5'-monophosphate (AMP) to inosine 5'-monophosphate (IMP) and ammonia. AMPD from Arabidopsis thaliana (AtAMPD) was cloned into the baculoviral transfer vector p2Bac and co-transfected along with a modified
Induction of 3'-O-beta-D-ribofuranosyl adenosine during compatible, but not during incompatible, interactions of Arabidopsis thaliana or Lycopersicon esculentum with Pseudomonas syringae pathovar tomato.
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All hitherto identified aromatic compounds accumulating in leaves of Arabidopsis thaliana (L.) Heynh. upon infection with virulent or avirulent strains of Pseudomonas syringae pathovar tomato ( Pst) were indolic metabolites. We now report the strong accumulation of a novel type of natural product,
tRNA ADENOSINE DEAMINASE 3 is required for telomere maintenance in Arabidopsis thaliana
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KEY MESSAGE: tRNA Adenosine Deaminase 3 helps to sustain telomere tracts in a telomerase-independent fashion, likely through regulating cellular metabolism. Telomere length maintenance is influenced by a complex web of chromatin and metabolism-related factors. We previously reported that a lncRNA
Induction of early bolting in Arabidopsis thaliana by triacontanol, cerium and lanthanum is correlated with increased endogenous concentration of isopentenyl adenosine (iPAdos).
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The effects of triacontanol (TRIA), applied singly or in combination with cerium nitrate and lanthanum nitrate, on bolting of Arabidopsis thaliana were studied. Triacontanol (0.1 to 0.6 microM) added to the culture medium induced early bolting. TRIA (0.3 microM) applied with low concentrations of
Exogenous adenosine 5'-phosphoramidate behaves as a signal molecule in plants; it augments metabolism of phenylpropanoids and salicylic acid in Arabidopsis thaliana seedlings.
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Cells contain various congeners of the canonical nucleotides. Some of these accumulate in cells under stress and may function as signal molecules. Their cellular levels are enzymatically controlled. Previously, we demonstrated a signaling function for diadenosine polyphosphates and cyclic
Adenosine-5'-triphosphate-sulfurylase from Arabidopsis thaliana and Escherichia coli are functionally equivalent but structurally and kinetically divergent: nucleotide sequence of two adenosine-5'-triphosphate-sulfurylase cDNAs from Arabidopsis thaliana and analysis of a recombinant enzyme.
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ATP-sulfurylase, the first enzyme of sulfate assimilation, catalyzes the formation of adenosine-5'-phosphosulfate from ATP and sulfate. Here we report that the higher plant, Arabidopsis thaliana, contains a three-member, expressed gene family encoding plastid localized forms of ATP sulfurylase.
mRNA adenosine methylase (MTA) deposits m 6 A on pri-miRNAs to modulate miRNA biogenesis in Arabidopsis thaliana
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In Arabidopsis thaliana, the METTL3 homolog, mRNA adenosine methylase (MTA) introduces N 6-methyladenosine (m6A) into various coding and noncoding RNAs of the plant transcriptome. Here, we show that an MTA-deficient mutant (mta) has decreased levels of
Nucleotide binding site communication in Arabidopsis thaliana adenosine 5'-phosphosulfate kinase.
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Adenosine 5'-phosphosulfate kinase (APSK) catalyzes the ATP-dependent synthesis of adenosine 3'-phosphate 5'-phosphosulfate (PAPS), which is an essential metabolite for sulfur assimilation in prokaryotes and eukaryotes. Using APSK from Arabidopsis thaliana, we examine the energetics of nucleotide
Characterisation of a concentrative type of adenosine transporter from Arabidopsis thaliana (ENT1,At).
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Here we report on the isolation of an Arabidopsis thaliana cDNA that is able to complement a Saccharomyces cerevisiae mutant unable to synthesise adenine. This cDNA encodes a highly hydrophobic protein (ENT1,At) of 428 amino acids, showing high similarity to the human nucleoside transporter hENT1.
Distribution of control in the sulfur assimilation in Arabidopsis thaliana depends on environmental conditions.
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Sulfur assimilation is central to the survival of plants and has been studied under different environmental conditions. Multiple studies have been published trying to determine rate-limiting or controlling steps in this pathway. However, the picture remains inconclusive with at least two different
Structure of the thiazole biosynthetic enzyme THI1 from Arabidopsis thaliana.
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Thiamin pyrophosphate is an essential coenzyme in all organisms that depend on fermentation, respiration or photosynthesis to produce ATP. It is synthesized through two independent biosynthetic routes: one for the synthesis of 2-methyl-4-amino-5-hydroxymethylpyrimidine pyrophosphate (pyrimidine
N⁶-methyladenosine (m⁶A): Revisiting the Old with Focus on New, an Arabidopsis thaliana Centered Review.
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N⁶-methyladenosine (m⁶A) is known to occur in plant and animal messenger RNAs (mRNAs) since the 1970s. However, the scope and function of this modification remained un-explored till very recently. Since the beginning of this decade, owing to major technological breakthroughs, the interest in
Functional characterization and organ distribution of three mitochondrial ATP-Mg/Pi carriers in Arabidopsis thaliana.
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The Arabidopsis thaliana genome contains 58 membrane proteins belonging to the mitochondrial carrier family. Three members of this family, here named AtAPC1, AtAPC2, and AtAPC3, exhibit high structural similarities to the human mitochondrial ATP-Mg(2+)/phosphate carriers. Under normal physiological
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