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Arabidopsis TRB proteins function in H3K4me3 demethylation by recruiting JMJ14.
Wang, Ming; Zhong, Zhenhui; Gallego-Bartolomé, Javier; Feng, Suhua; Shih, Yuan-Hsin; Liu, Mukun; Zhou, Jessica; Richey, John Curtis; Ng, Charmaine; Jami-Alahmadi, Yasaman; Wohlschlegel, James; Wu, Keqiang; Jacobsen, Steven E.
Afiliação
  • Wang M; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Zhong Z; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Gallego-Bartolomé J; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Feng S; Instituto de Biología Molecular y Celular de Plantas (IBMCP), CSIC-Universitat Politècnica de València, 46022, Valencia, Spain.
  • Shih YH; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Liu M; Eli & Edythe Broad Center of Regenerative Medicine & Stem Cell Research, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Zhou J; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Richey JC; Institute of Plant Biology, National Taiwan University, Taipei, 10617, Taiwan.
  • Ng C; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Jami-Alahmadi Y; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Wohlschlegel J; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Wu K; Department of Molecular, Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
  • Jacobsen SE; Department of Biological Chemistry, University of California at Los Angeles, Los Angeles, CA, 90095, USA.
Nat Commun ; 14(1): 1736, 2023 03 28.
Article em En | MEDLINE | ID: mdl-36977663
Arabidopsis telomeric repeat binding factors (TRBs) can bind telomeric DNA sequences to protect telomeres from degradation. TRBs can also recruit Polycomb Repressive Complex 2 (PRC2) to deposit tri-methylation of H3 lysine 27 (H3K27me3) over certain target loci. Here, we demonstrate that TRBs also associate and colocalize with JUMONJI14 (JMJ14) and trigger H3K4me3 demethylation at some loci. The trb1/2/3 triple mutant and the jmj14-1 mutant show an increased level of H3K4me3 over TRB and JMJ14 binding sites, resulting in up-regulation of their target genes. Furthermore, tethering TRBs to the promoter region of genes with an artificial zinc finger (TRB-ZF) successfully triggers target gene silencing, as well as H3K27me3 deposition, and H3K4me3 removal. Interestingly, JMJ14 is predominantly recruited to ZF off-target sites with low levels of H3K4me3, which is accompanied with TRB-ZFs triggered H3K4me3 removal at these loci. These results suggest that TRB proteins coordinate PRC2 and JMJ14 activities to repress target genes via H3K27me3 deposition and H3K4me3 removal.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arabidopsis / Proteínas de Arabidopsis Idioma: En Ano de publicação: 2023 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arabidopsis / Proteínas de Arabidopsis Idioma: En Ano de publicação: 2023 Tipo de documento: Article