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Puslapis 1 nuo 1506 rezultatus
Different Polycomb group complexes regulate common target genes in Arabidopsis.
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Polycomb group (PcG) proteins convey epigenetic inheritance of repressed transcriptional states. Although the mechanism of the action of PcG is not completely understood, methylation of histone H3 lysine 27 (H3K27) is important in establishing PcG-mediated transcriptional repression. We show that
Multiple promoters are a common feature of mitochondrial genes in Arabidopsis.
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Mitochondrial genes in the plant Arabidopsis thaliana are transcribed by two phage-type RNA polymerases encoded in the nucleus. Little is known about cis-elements that are recognized by these enzymes and mediate the transcription of the Arabidopsis mitochondrial genome. Here, 30 transcription
Nodulin 41, a novel late nodulin of common bean with peptidase activity.
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BACKGROUND
The legume-rhizobium symbiosis requires the formation of root nodules, specialized organs where the nitrogen fixation process takes place. Nodule development is accompanied by the induction of specific plant genes, referred to as nodulin genes. Important roles in processes such as
Parallel Evolution of Common Allelic Variants Confers Flowering Diversity in Capsella rubella.
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Flowering time is an adaptive life history trait. Capsella rubella, a close relative of Arabidopsis thaliana and a young species, displays extensive variation for flowering time but low standing genetic variation due to an extreme bottleneck event, providing an excellent opportunity to understand
The R-loop is a common chromatin feature of the Arabidopsis genome.
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R-loops are functional structures in chromatin comprising one single-stranded DNA and a DNA:RNA hybrid. Here, we report ssDRIP-seq, a single-strand DNA ligation-based library preparation technique for genome-wide identification of R-loops. When applied in Arabidopsis, ssDRIP-seq exhibits high
Brassinosteroid, gibberellin and phytochrome impinge on a common transcription module in Arabidopsis.
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Brassinosteroid and gibberellin promote many similar developmental responses in plants; however, their relationship remains unclear. Here we show that BR and GA act interdependently through a direct interaction between the BR-activated BZR1 and GA-inactivated DELLA transcription regulators. GA
Microtubule Array Patterns Have a Common Underlying Architecture in Arabidopsis Hypocotyl Cells.
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Microtubules at the plant cell cortex influence cell shape by patterning the deposition of cell wall materials. The elongated cells of the hypocotyl create a variety of microtubule array patterns with differing degrees of polymer coalignment and orientation to the cell's growth axis. To gain insight
Ribonuclease activity is a common property of Arabidopsis CCCH-containing zinc-finger proteins.
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The CCCH class of zinc fingers occurs in a large number of Arabidopsis proteins. Previous studies revealed that one such protein is a nuclease, the activity of which is attributable to one of the CCCH motifs. To examine whether nuclease activity is a more general characteristic of CCCH zinc finger
Common and unique elements of the ABA-regulated transcriptome of Arabidopsis guard cells.
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BACKGROUND
In the presence of drought and other desiccating stresses, plants synthesize and redistribute the phytohormone abscisic acid (ABA). ABA promotes plant water conservation by acting on specialized cells in the leaf epidermis, guard cells, which border and regulate the apertures of stomatal
Activation of the Arabidopsis thaliana immune system by combinations of common ACD6 alleles.
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A fundamental question in biology is how multicellular organisms distinguish self and non-self. The ability to make this distinction allows animals and plants to detect and respond to pathogens without triggering immune reactions directed against their own cells. In plants, inappropriate
In vitro characterization of Arabidopsis CP12 isoforms reveals common biochemical and molecular properties.
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In oxygenic photosynthetic organisms, the activities of two Calvin cycle enzymes (glyceraldehyde-3-phosphate dehydrogenase, GAPDH and phosphoribulokinase, PRK) are regulated by CP12-mediated complex formation. The Arabidopsis genome contains three genes encoding different CP12 isoforms (CP12-1,
Comprehensive profiling of lysine ubiquitome reveals diverse functions of lysine ubiquitination in common wheat.
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Protein ubiquitination, which is a major post-translational modifications that occurs in eukaryotic cells, is involved in diverse biological processes. To date, large-scale profiling of the ubiquitome in common wheat has not been reported, despite its status as the major cereal crop in the world.
Hormonal and stress induction of the gene encoding common bean acetyl-coenzyme A carboxylase.
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Regulation of the cytosolic acetyl-coenzyme A carboxylase (ACCase) gene promoter from common bean (Phaseolus vulgaris) was studied in transgenic Arabidopsis (Arabidopsis thaliana) plants using a beta-glucuronidase (GUS) reporter gene fusion (PvACCase::GUS). Under normal growth conditions, GUS was
A common structural basis for pH- and calmodulin-mediated regulation in plant glutamate decarboxylase.
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Glutamate decarboxylase (Gad) catalyzes glutamate to gamma-aminobutyrate conversion. Plant Gad is a approximately 340 kDa hexamer, involved in development and stress response, and regulated by pH and binding of Ca(2+)/calmodulin (CaM) to the C-terminal domain. We determined the crystal structure of
Glycosylphosphatidylinositol-Anchored Proteins in Arabidopsis and One of Their Common Roles in Signaling Transduction.
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Diverse proteins are found modified with glycosylphosphatidylinositol (GPI) at their carboxyl terminus in eukaryotes, which allows them to associate with membrane lipid bilayers and anchor on the external surface of the plasma membrane. GPI-anchored proteins (GPI-APs) play crucial roles in various
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