Sökning: "epigenetic"

Visar resultat 6 - 10 av 379 avhandlingar innehållade ordet epigenetic.

  1. 6. Suppressor of zeste 12, a Polycomb group gene in Drosophila melanogaster; one piece in the epigenetic puzzle

    Författare :Anna Birve; Anssi Saura; Allen Shearn; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Drosophila melanogaster; epigenetic; homeotic genes; Polycomb group; PRE; heterochromatin; Suppressor of zeste 12; chromatin silencing; Genetik; Clinical genetics; Klinisk genetik; Genetics; genetik;

    Sammanfattning : In multicellular organisms all cells in one individual have an identical genotype, and yet their bodies consist of many and very different tissues and thus many different cell types. Somehow there must be a difference in how genes are interpreted. So, there must be signals that tell the genes when and where to be active and inactive, respectively. LÄS MER

  3. 7. Towards forecasting epigenetic repression

    Författare :Moa J. Lundkvist; Yuri B. Schwartz; Ludvig Lizana; Peter V. Kharchenko; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; epigenetics; Polycomb; PRC1; PRC2; H3K27 methylation; Monte-Carlo simulation; chromatin structure; Drosophila; molekylär bioteknik inst f molekylärbiologi ; molecular biotechnology dept of molecular biology ;

    Sammanfattning : Multicellular organisms form many different cell types from one genome, which requires differential gene activity. The Polycomb system upholds the correct gene expression programs by epigenetically silencing genes that encode critical transcription regulators. LÄS MER

  4. 8. Epigenetic Regulation by Noncoding RNA

    Författare :Tanmoy Mondal; Chandrasekhar Kanduri; Jérôme Cavaillé; Uppsala universitet; []
    Nyckelord :Genomic Imprinting; Noncoding RNA; Epigenetics; DNA methylation; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi;

    Sammanfattning : High throughput transcriptomic analyses have realized us with the fact that eukaryotic genome encodes thousands of noncoding RNAs (ncRNAs) with unknown function. In my thesis, I sought to address epigenetic regulation of transcription by ncRNA using the Kcnq1 imprinted cluster as a model system. LÄS MER

  5. 9. Genetic and Genomic Analysis of Transcriptional Regulation in Human Cells

    Författare :Mehdi Motallebipour; Claes Wadelius; Gunnar Westin; Dirk Schübeler; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Transcription; ChIP-chip; ChIP-seq; genome-wide; transcription factors; microsatellite; epigenetic; Medical genetics; Medicinsk genetik;

    Sammanfattning : There are around 20.000 genes in the human genome all of which could potentially be expressed. However, it is obvious that not all of them can be active at the same time. Thus, there is a need for coordination achieved through the regulation of transcription. LÄS MER

  7. 10. The elephant in the cell : A multifaceted undertaking to uncover the molecular principles behind lymphatic endothelial cell identity

    Författare :Virginia Panara; Katarzyna Koltowska; Taija Mäkinen; Marcel den Hoed; Sarah de Val; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lymphatic endothelium; Development; Epigenetic; Biologi med inriktning mot zoologisk utvecklingsbiologi; Biology with specialization in Animal Development;

    Sammanfattning : The lymphatic vascular network is composed of a series of blind ended vessels, and is involved in physiological functions such as fluid homeostasis, lipid metabolism and immune trafficking. Despite lymphatic endothelial cells being derived from multiple organs, they share common molecular denominators, including the expression of the transcription factor Prox1. LÄS MER