IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_s41467-017-01206-y.html
   My bibliography  Save this article

Structural and mechanistic insights into ATRX-dependent and -independent functions of the histone chaperone DAXX

Author

Listed:
  • Dominik Hoelper

    (School of Medicine and Public Health, University of Wisconsin
    University of Wisconsin)

  • Hongda Huang

    (Memorial Sloan-Kettering Cancer Center
    South University of Science and Technology)

  • Aayushi Y. Jain

    (School of Medicine and Public Health, University of Wisconsin
    University of Wisconsin)

  • Dinshaw J. Patel

    (Memorial Sloan-Kettering Cancer Center)

  • Peter W. Lewis

    (School of Medicine and Public Health, University of Wisconsin
    University of Wisconsin)

Abstract

The ATRX–DAXX histone chaperone complex incorporates the histone variant H3.3 at heterochromatic regions in a replication-independent manner. Here, we present a high-resolution x-ray crystal structure of an interaction surface between ATRX and DAXX. We use single amino acid substitutions in DAXX that abrogate formation of the complex to explore ATRX-dependent and ATRX-independent functions of DAXX. We find that the repression of specific murine endogenous retroviruses is dependent on DAXX, but not on ATRX. In support, we reveal the existence of two biochemically distinct DAXX-containing complexes: the ATRX–DAXX complex involved in gene repression and telomere chromatin structure, and a DAXX–SETDB1–KAP1–HDAC1 complex that represses endogenous retroviruses independently of ATRX and H3.3 incorporation into chromatin. We find that histone H3.3 stabilizes DAXX protein levels and can affect DAXX-regulated gene expression without incorporation into nucleosomes. Our study demonstrates a nucleosome-independent function for the H3.3 histone variant.

Suggested Citation

  • Dominik Hoelper & Hongda Huang & Aayushi Y. Jain & Dinshaw J. Patel & Peter W. Lewis, 2017. "Structural and mechanistic insights into ATRX-dependent and -independent functions of the histone chaperone DAXX," Nature Communications, Nature, vol. 8(1), pages 1-13, December.
  • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01206-y
    DOI: 10.1038/s41467-017-01206-y
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-017-01206-y
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-017-01206-y?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Sophia Groh & Anna Viktoria Milton & Lisa Katherina Marinelli & Cara V. Sickinger & Angela Russo & Heike Bollig & Gustavo Pereira de Almeida & Andreas Schmidt & Ignasi Forné & Axel Imhof & Gunnar Scho, 2021. "Morc3 silences endogenous retroviruses by enabling Daxx-mediated histone H3.3 incorporation," Nature Communications, Nature, vol. 12(1), pages 1-18, December.
    2. Iqbal Mahmud & Guimei Tian & Jia Wang & Tarun E. Hutchinson & Brandon J. Kim & Nikee Awasthee & Seth Hale & Chengcheng Meng & Allison Moore & Liming Zhao & Jessica E. Lewis & Aaron Waddell & Shangtao , 2023. "DAXX drives de novo lipogenesis and contributes to tumorigenesis," Nature Communications, Nature, vol. 14(1), pages 1-20, December.
    3. Kentaro Mochizuki & Jafar Sharif & Kenjiro Shirane & Kousuke Uranishi & Aaron B. Bogutz & Sanne M. Janssen & Ayumu Suzuki & Akihiko Okuda & Haruhiko Koseki & Matthew C. Lorincz, 2021. "Repression of germline genes by PRC1.6 and SETDB1 in the early embryo precedes DNA methylation-mediated silencing," Nature Communications, Nature, vol. 12(1), pages 1-15, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01206-y. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.