Publication: BAP1 regulation of the key adaptor protein NCoR1 is critical for γ-globin gene repression
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2018-12-01
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15495477
08909369
08909369
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2-s2.0-85059911235
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Mahidol University
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SCOPUS
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Genes and Development. Vol.32, No.23-24 (2018), 1537-1549
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Lei Yu, Natee Jearawiriyapaisarn, Mary P. Lee, Tomonori Hosoya, Qingqing Wu, Greggory Myers, Kim Chew Lim, Ryo Kurita, Yukio Nakamura, Anne B. Vojtek, Jean François Rual, James Douglas Engel BAP1 regulation of the key adaptor protein NCoR1 is critical for γ-globin gene repression. Genes and Development. Vol.32, No.23-24 (2018), 1537-1549. doi:10.1101/gad.318436.118 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/44969
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BAP1 regulation of the key adaptor protein NCoR1 is critical for γ-globin gene repression
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© 2018 Yu et al. Human globin gene production transcriptionally “switches” from fetal to adult synthesis shortly after birth and is controlled by macromolecular complexes that enhance or suppress transcription by cis elements scattered throughout the locus. The DRED (direct repeat erythroid-definitive) repressor is recruited to the ε-globin and γ-globin promoters by the orphan nuclear receptors TR2 (NR2C1) and TR4 (NR2C2) to engender their silencing in adult erythroid cells. Here we found that nuclear receptor corepressor-1 (NCoR1) is a critical component of DRED that acts as a scaffold to unite the DNA-binding and epigenetic enzyme components (e.g., DNA methyltransferase 1 [DNMT1] and lysine-specific demethylase 1 [LSD1]) that elicit DRED function. We also describe a potent new regulator of γ-globin repression: The deubiquitinase BRCA1-associated protein-1 (BAP1) is a component of the repressor complex whose activity maintains NCoR1 at sites in the β-globin locus, and BAP1 inhibition in erythroid cells massively induces γ-globin synthesis. These data provide new mechanistic insights through the discovery of novel epigenetic enzymes that mediate γ-globin gene repression.