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histone/lituruohot
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Sivu 1 alkaen 1303 tuloksia
Phylogeny-Based Systematization of Arabidopsis Proteins with Histone H1 Globular Domain.
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H1 (or linker) histones are basic nuclear proteins that possess an evolutionarily conserved nucleosome-binding globular domain, GH1. They perform critical functions in determining the accessibility of chromatin DNA to trans-acting factors. In most metazoan species studied so far, linker histones are
Histone H1 Variants in Arabidopsis Are Subject to Numerous Post-Translational Modifications, Both Conserved and Previously Unknown in Histones, Suggesting Complex Functions of H1 in Plants.
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Linker histones (H1s) are conserved and ubiquitous structural components of eukaryotic chromatin. Multiple non-allelic variants of H1, which differ in their DNA/nucleosome binding properties, co-exist in animal and plant cells and have been implicated in the control of genetic programs during
Histone deacetylase complex1 expression level titrates plant growth and abscisic acid sensitivity in Arabidopsis.
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Histone deacetylation regulates gene expression during plant stress responses and is therefore an interesting target for epigenetic manipulation of stress sensitivity in plants. Unfortunately, overexpression of the core enzymes (histone deacetylases [HDACs]) has either been ineffective or has caused
RNAi, DRD1, and histone methylation actively target developmentally important non-CG DNA methylation in arabidopsis.
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Cytosine DNA methylation protects eukaryotic genomes by silencing transposons and harmful DNAs, but also regulates gene expression during normal development. Loss of CG methylation in the Arabidopsis thaliana met1 and ddm1 mutants causes varied and stochastic developmental defects that are often
Involvement of a Jumonji-C domain-containing histone demethylase in DRM2-mediated maintenance of DNA methylation.
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Histone demethylases-both lysine-specific demethylase 1 (LSD1) and Jumonji-C (JmjC) domain-containing proteins-are broadly implicated in the regulation of chromatin-dependent processes. In Arabidopsis thaliana, histone marks directly affect DNA methylation, and mutations in LSD1 homologues show
Histone H2B Monoubiquitination Mediated by HISTONE MONOUBIQUITINATION1 and HISTONE MONOUBIQUITINATION2 Is Involved in Anther Development by Regulating Tapetum Degradation-Related Genes in Rice.
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Histone H2B monoubiquitination (H2Bub1) is an important regulatory mechanism in eukaryotic gene transcription and is essential for normal plant development. However, the function of H2Bub1 in reproductive development remains elusive. Here, we report rice (Oryza sativa) HISTONE MONOUBIQUITINATION1
Two combinatorial patterns of telomere histone marks in plants with canonical and non-canonical telomere repeats.
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Telomeres, nucleoprotein structures at the ends of linear eukaryotic chromosomes, are crucial for the maintenance of genome integrity. In most plants, telomeres consist of conserved tandem repeat units comprising the TTTAGGG motif. Recently, non-canonical telomeres were described in several plants
Combinatorial functions of diverse histone methylations in Arabidopsis thaliana flowering time regulation.
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Previous studies in Arabidopsis thaliana have identified several histone methylation enzymes, including Arabidopsis trithorax1 (ATX1)/set domain group 27 (SDG27), ATX2/SDG30, LSD1-LIKE1 (LDL1), LDL2, SDG8, SDG25, and curly leaf (CLF)/SDG1, as regulators of the key flowering repressor flowering locus
Characterization of a lysine-specific histone demethylase from Arabidopsis thaliana.
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Arabidopsis thaliana has four genes with close homology to human histone H3 lysine 4 demethylase (HsLSD1), a component of various transcriptional corepressor complexes that often also contain histone deacetylases and the corepressor protein CoREST. All four Arabidopsis proteins contain a flavin
The Four FAD-Dependent Histone Demethylases of Arabidopsis Are Differently Involved in the Control of Flowering Time.
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In Arabidopsis thaliana, four FAD-dependent lysine-specific histone demethylases (LDL1, LDL2, LDL3, and FLD) are present, bearing both a SWIRM and an amine oxidase domain. In this study, a comparative analysis of gene structure, evolutionary relationships, tissue- and organ-specific
DWARF WITH SLENDER LEAF1 encoding a histone deacetylase plays diverse roles in rice development.
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In plants, reversible histone acetylation and deacetylation play a crucial role in various biological activities, including development and the response to environmental stress. Histone deacetylation, which is generally associated with gene silencing, is catalyzed by multiple histone deacetylases
Recent advances in maize nuclear proteomic studies reveal histone modifications.
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The nucleus of eukaryotic organisms is highly dynamic and complex, containing different types of macromolecules including DNA, RNA, and a wide range of proteins. Novel proteomic applications have led to a better overall determination of nucleus protein content. Although nuclear plant proteomics is
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
Structure of Arabidopsis HISTONE DEACETYLASE15
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Mammalian histone deacetylases (HDACs) undergo phosphorylation to regulate their localization, activity and function. However, little is known about the regulation of plant HDAC function and activity by phosphorylation. Here, we report the crystal structure of the Reduced Potassium
Genomic organization and nucleotide sequences of two histone H3 and two histone H4 genes of Arabidopsis thaliana.
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Two histone H3 and two histone H4 genes have been cloned from a λgtWESλ·B Arabidopsis thaliana gene library. From their nucleotide sequences and from studies on their genomic organization, the following conclusions can be drawn: : 1) The nucleotide sequences of the two H3 coding regions show only
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