Sökning: "Karl Ekwall"

Visar resultat 6 - 10 av 12 avhandlingar innehållade orden Karl Ekwall.

  1. 6. Epigenetic Regulation and Reprogramming of the H19 Imprinting Control Region

    Författare :Piero Mariano; Rolf Ohlsson; Karl Ekwall; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Imprinting; chromatin; H19; Igf2; CTCF; Insulator; methylation; Boris; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi;

    Sammanfattning : The development of a new individual from the fertilized oocyte can ultimately be seen as the consequence of the establishment and maintenance of specific patterns of gene expression. Although regulation of gene activity occurs at different levels, cellular specialization and differentiation are the results of developmental cues that essentially take place at the transcriptional level. LÄS MER

  3. 7. Regulatory Roles of Noncoding RNA in Development and Disease

    Författare :Gaurav Kumar Pandey; Chandrasekhar Kanduri; Claes Wadelius; Karl Ekwall; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Noncoding RNA; Genomic Imprinting; Epigenetics; Neuroblastoma;

    Sammanfattning : Long noncoding RNAs (lncRNAs) are being realized as important players in gene regulation and their misregulation has been considered as one of the underlying causes for tumor initiation and progression in many human pathologies. In the current thesis, I have addressed the functional role of lncRNAs in development and disease model systems. LÄS MER

  4. 8. Molecular Insights into Kcnq1ot1 Noncoding Antisense RNA Mediated Long Range Transcriptional Gene Silencing

    Författare :Radha Raman Pandey; Chandrasekhar Kanduri; Karl Ekwall; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epigenetics; gene silencing; noncoding RNA; genomic imprinting; Kcnq1ot1; Medical genetics; Medicinsk genetik;

    Sammanfattning : Non-coding antisense RNAs have been implicated in the epigenetic silencing of individual gene as well as chromosomal domains. While silencing of the overlapping gene by antisense RNAs has been well investigated, their functional role in silencing of chromosomal domains remains enigmatic. LÄS MER

  5. 9. Histone deacetylases and their co-regulators in schizosaccharomyces pombe

    Författare :Rebecka A. Silverstein; Karl Ekwall; Anthony Wright; Fred Van Leeuwen; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The DNA in every eukaryotic cell is wrapped around eight core histones to form the nucleosome. Therefore all events that involve DNA must also involve chromatin and nucleosomes. By regulating chromatin structure the cell can regulate the reactivity of the DNA. LÄS MER

  7. 10. Genome-wide patterns of histone modifications in fission yeast

    Författare :Indranil Sinha; Karl Ekwall; Karin Dahlman-Wright; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : DNA is wrapped almost two times around a group of proteins called histones to form a chromosomal structure known as the nucleosome. Both DNA and histones can be modified with different chemical tags by several enzymes to activate or suppress a particular gene or group of genes. Histones can be covalently modified at several places. LÄS MER