Histone H1 In Arabidopsis Thaliana

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Histone H1 In Arabidopsis Thaliana

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Author : Ashley Loray Jones
language : en
Publisher:
Release Date : 2014

Histone H1 In Arabidopsis Thaliana written by Ashley Loray Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

Histone H1, or linker histone, are unique histones that bind to the nucleosome to facilitate higher order chromatin structure. The linker histones, when compared to the core histones that make up the nucleosome, are poorly understood especially in plants. Linker histones are vital for plant development as well as for cell cycle regulation, sharing many qualities with animal linker histones. In this report, the first two parts introduce the current literature of H1, including result from non-plant systems, and the third section is a research proposal describing a research project to elucidate the roles of linker histones on the regulation of FLOWERING LOCUS C (FLC) in Arabidopsis thaliana.

Linker Histones Of Arabidopsis Thaliana

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Author : Robert Albert Ascenzi
language : en
Publisher:
Release Date : 1998

Linker Histones Of Arabidopsis Thaliana written by Robert Albert Ascenzi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

Preliminary Analysis Of Three Previously Uncharacterized Linker Histone Like Genes In Arabidopsis Thaliana Microform

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Author : R. Stefan Rusyniak
language : en
Publisher: Library and Archives Canada = Bibliothèque et Archives Canada
Release Date : 2004

Preliminary Analysis Of Three Previously Uncharacterized Linker Histone Like Genes In Arabidopsis Thaliana Microform written by R. Stefan Rusyniak and has been published by Library and Archives Canada = Bibliothèque et Archives Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

This study was undertaken to identify and study novel linker histone variants in Arabidopsis thaliana. It was specifically focussed on determining tissue specificity, and possibly identifying an Arabidopsis cognate of a meiosis-specific, linker-histone-like protein called meiotin-1, previously characterized in Lilium longiflorum. Amino acid sequence similarity to the linker histone globular domain identified five candidate proteins. Two of those candidates (BT and F20) showed weak similarity to Meiotin-1, and were selected for further study; a third gene (BTBB) was also included, due to its close similarity to BT. Analysis of the three genes indicated that they were unlikely to encode meiotin-1 cognates. Semi-quantitative RT-PCR showed no meiosis-specificity in the expression of any of the genes, but BTBB did appear to be expressed in tissues undergoing active division. These novel genes probably encode chromatin associated proteins; BT and BTBB appear to be related to plant HMGA proteins, while the function of F20 remains elusive.

Histone H3 And H4 Genes From Maize And Arabidopsis Thaliana

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Author : Philippe Pierre Tacchini
language : en
Publisher:
Release Date : 1989

Histone H3 And H4 Genes From Maize And Arabidopsis Thaliana written by Philippe Pierre Tacchini and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.

Histone H1 Distribution In Chromatin And Chromosomes

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Author : John Wesley Breneman
language : en
Publisher:
Release Date : 1992

Histone H1 Distribution In Chromatin And Chromosomes written by John Wesley Breneman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Annual Plant Reviews Plant Nuclear Structure Genome Architecture And Gene Regulation

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Author : David Evans
language : en
Publisher: John Wiley & Sons
Release Date : 2013-03-27

Annual Plant Reviews Plant Nuclear Structure Genome Architecture And Gene Regulation written by David Evans and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-27 with Science categories.

This timely volume brings together expert reviews of the recent significant advances in our knowledge and understanding of the organisation of the higher plant nucleus, and in particular in the relationship between nuclear organisation and the regulation of gene expression. Rapid progress has been made in a number of key areas over the last five years, including description and characterization of proteins of the nuclear envelope and nuclear pore complex, novel insights into nucleoskeletal structures, as well as developments related to chromatin organization, function and gene expression. These advances open the way for new research into areas such as stress tolerance, plant-pathogen interactions and ultimately crop improvement and food security. Continued research into plant nuclear structure, genome architecture and gene regulation also enriches our understanding of the origin and evolution of the nucleus and its envelope. Edited by world-class researchers in plant cell biology, and comprising contributions from internationally-renowned academics, this latest volume in the prestigious Annual Plant Reviews series brings together a wealth of knowledge in the burgeoning field of plant nuclear structure and genetics. Annual Plant Reviews, Volume 46: Plant Nuclear Structure, Genome Architecture and Gene Regulation is a vital resource for advanced students, researchers and professionals in plant science and related disciplines. Libraries in all research establishments where plant science, biochemistry, molecular biology, genetics and genomics and agricultural science are taught and studied will find this excellent volume an essential addition to their shelf.

Arabidopsis Thaliana Histone Deacetylase 1 Athd1 And Epigenetic Regulation

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Author : Lu Tian
language : en
Publisher:
Release Date : 2004

Arabidopsis Thaliana Histone Deacetylase 1 Athd1 And Epigenetic Regulation written by Lu Tian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Epigenetic regulation is a mechanism by which heritable changes in gene expression are controlled by chromatin status rather than primary DNA sequence. Changes in chromatin structure affect accessibility of DNA elements to the transcriptional machinery and thus affect transcription activity of the gene. A key event in this process is reversible modification of core histones, which is catalyzed by histone acetyltransferases (HATs) and histone deacetylases (HDs, HDAs, or HDACs). In general, histone deacetylation is related to transcriptional gene silencing, whereas acetylation is associated with gene activation. To study the role of histone deacetylase in plant gene regulation and development, we generated constitutive antisense histone deacetylase 1 (CASH) transgenic plants. AtHD1 is a homolog of RPD3 protein, a global transcriptional regulator in yeast. Expression of the antisense AtHD1 caused dramatic reduction in endogenous AtHD1 transcription, resulting in accumulation of acetylated histones. Down-regulation of histone deacetylation caused a variety of growth and developmental abnormalities and ectopic expression of tissue-specific genes. However, changes in genomic DNA methylation were not detected in repetitive DNA sequences in the transgenic plants. We also identified a T-DNA insertion line in exon 2 of AtHD1 gene (athd1-t1), resulting in a null allele at the locus. The complete inhibition of the AtHD1 expression induced growth and developmental defects similar to those of CASH transgenic plants. The phenotypic abnormalities were heritable across the generations in the mutants. When the athd1-t1/athd1-t1 plants were crossed to wild-type plants, the mutant phenotype was corrected in the F1 hybrids, which correlated with the AtHD1 expression and reduction of histone H4 Lys12 acetylation. Microarray analysis was applied to determine genome-wide changes in transcriptional profiles in the athd1-t1 mutant. Approximately 6.7% (1,753) of the genes were differentially expressed in leaves between the wild-type (Ws) and the athd1-t1 mutant, whereas 4.8% (1,263) of the genes were up- or down-regulated in flower buds of the mutant. These affected genes were randomly distributed across five chromosomes of Arabidopsis and represented a wide range of biological functions. Chromatin immunoprecipitation assays indicated that the activation for a subset of genes was directly associated with changes in acetylation profiles.

Characterization Of Pho1 And Pho1 H1 Gene Function In Arabidopsis Thaliana

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Author : Aleksandra Stefanovic
language : en
Publisher:
Release Date : 2006

Characterization Of Pho1 And Pho1 H1 Gene Function In Arabidopsis Thaliana written by Aleksandra Stefanovic and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Towards Characterisation Of Histone H1 Gene Transcription Factors

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Author : Blair Hopwood
language : en
Publisher:
Release Date : 1993

Towards Characterisation Of Histone H1 Gene Transcription Factors written by Blair Hopwood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

Role Of Linker Histone H1 Variants In Cell Proliferation Chromatin Structure And Gene Expression In Breast Cancer Cells

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Author : Mónica Sancho Medina
language : en
Publisher:
Release Date : 2008

Role Of Linker Histone H1 Variants In Cell Proliferation Chromatin Structure And Gene Expression In Breast Cancer Cells written by Mónica Sancho Medina and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.