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H3K36 Methylation and the Chromodomain Protein Eaf3 Are Required for Proper Cotranscriptional Spliceosome Assembly.
Leung, Calvin S; Douglass, Stephen M; Morselli, Marco; Obusan, Matthew B; Pavlyukov, Marat S; Pellegrini, Matteo; Johnson, Tracy L.
Afiliação
  • Leung CS; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
  • Douglass SM; Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
  • Morselli M; Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Institute for Genomics and Proteomics, University of California, Los Angeles, Los Angeles, CA 90095, USA; Institute for Quantitative and Computational Biosciences, University
  • Obusan MB; Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
  • Pavlyukov MS; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow 117997, Russian Federation.
  • Pellegrini M; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Institute for Genomics and Proteomics, University of California, Los Angeles, L
  • Johnson TL; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA 90095, USA. Electronic address: tljohnson@ucla.edu.
Cell Rep ; 27(13): 3760-3769.e4, 2019 06 25.
Article em En | MEDLINE | ID: mdl-31242410
ABSTRACT
In the eukaryotic cell, spliceosomes assemble onto pre-mRNA cotranscriptionally. Spliceosome assembly takes place in the context of the chromatin environment, suggesting that the state of the chromatin may affect splicing. The molecular details and mechanisms through which chromatin affects splicing, however, are still unclear. Here, we show a role for the histone methyltransferase Set2 and its histone modification, H3K36 methylation, in pre-mRNA splicing through high-throughput sequencing. Moreover, the effect of H3K36 methylation on pre-mRNA splicing is mediated through the chromodomain protein Eaf3. We find that Eaf3 is recruited to intron-containing genes and that Eaf3 interacts with the splicing factor Prp45. Eaf3 acts with Prp45 and Prp19 after formation of the precatalytic B complex around the time of splicing activation, thus revealing the step in splicing that is regulated by H3K36 methylation. These studies support a model whereby H3K36 facilitates recruitment of an "adapter protein" to support efficient, constitutive splicing.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Saccharomyces cerevisiae / Acetiltransferases / Transcrição Gênica / Histonas / Spliceossomos / Proteínas de Saccharomyces cerevisiae Tipo de estudo: Prognostic_studies Idioma: En Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Saccharomyces cerevisiae / Acetiltransferases / Transcrição Gênica / Histonas / Spliceossomos / Proteínas de Saccharomyces cerevisiae Tipo de estudo: Prognostic_studies Idioma: En Ano de publicação: 2019 Tipo de documento: Article