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  • 1.
    Sinha, Indranil
    et al.
    Södertörn University, School of Life Sciences, Molecular biology. Karolinska Institutet.
    Buchanan, Luke
    Technische Universität Dresden, Dresden, Germany / Max Planck Institute, Dresten, Germany.
    Rönnerblad, Michelle
    Karolinska Institutet.
    Bonilla, Carolina
    Karolinska Institutet.
    Durand-Dubief, Mickael
    Karolinska Institutet.
    Shevchenko, Andrej
    Max Planck Institute, Dresten, Germany.
    Grunstein, Michael
    Geffen School of Medicine at UCLA, & the Molecular Biology Institute, Los Angeles, USA.
    Stewart, A. Francis
    Technische Universität Dresden, Dresden, Germany.
    Ekwall, Karl
    Karolinska Institutet.
    Genome-wide mapping of histone modifications and mass spectrometry reveal H4 acetylation bias and H3K36 methylation at gene promoters in fission yeast2010In: Epigenomics, ISSN 1750-1911, Vol. 2, no 3, p. 377-393Article in journal (Refereed)
    Abstract [en]

    To map histone modifications with unprecedented resolution both globally and locus-specifically, and to link modification patterns to gene expression. Materials & methods: Using correlations between quantitative mass spectrometry and chromatin immunoprecipitation/microarray analyses, we have mapped histone post-translational modifications in fission yeast (Schizosaccharomyces pombe). Results: Acetylations at lysine 9, 18 and 27 of histone H3 give the best positive correlations with gene expression in this organism. Using clustering analysis and gene ontology search tools, we identified promoter histone modification patterns that characterize several classes of gene function. For example, gene promoters of genes involved in cytokinesis have high H3K36me2 and low H3K4me2, whereas the converse pattern is found ar promoters of gene involved in positive regulation of the cell cycle. We detected acetylation of H4 preferentially at lysine 16 followed by lysine 12, 8 and 5. Our analysis shows that this H4 acetylation bias in the coding regions is dependent upon gene length and linked to gene expression. Our analysis also reveals a role for H3K36 methylation at gene promoters where it functions in a crosstalk between the histone methyltransferase Set2(KMT3) and the histone deacetylase Clr6, which removes H3K27ac leading to repression of transcription. Conclusion: Histone modification patterns could be linked to gene expression in fission yeast.

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