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Release of Histone H3K4-reading transcription factors from chromosomes in mitosis is independent of adjacent H3 phosphorylation

Lookup NU author(s): Rebecca Harris, Dr Maninder Heer, Dr Mark Levasseur, Dr Tyrell Cartwright, Beth Weston, Jennifer Mitchell, Dr Jonathan Coxhead, Dr Luke GaughanORCiD, Dr Lisa PrendergastORCiD, Professor Jonathan HigginsORCiD

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2023, The Author(s). Histone modifications influence the recruitment of reader proteins to chromosomes to regulate events including transcription and cell division. The idea of a histone code, where combinations of modifications specify unique downstream functions, is widely accepted and can be demonstrated in vitro. For example, on synthetic peptides, phosphorylation of Histone H3 at threonine-3 (H3T3ph) prevents the binding of reader proteins that recognize trimethylation of the adjacent lysine-4 (H3K4me3), including the TAF3 component of TFIID. To study these combinatorial effects in cells, we analyzed the genome-wide distribution of H3T3ph and H3K4me2/3 during mitosis. We find that H3T3ph anti-correlates with adjacent H3K4me2/3 in cells, and that the PHD domain of TAF3 can bind H3K4me2/3 in isolated mitotic chromatin despite the presence of H3T3ph. Unlike in vitro, H3K4 readers are still displaced from chromosomes in mitosis in Haspin-depleted cells lacking H3T3ph. H3T3ph is therefore unlikely to be responsible for transcriptional downregulation during cell division.


Publication metadata

Author(s): Harris RJ, Heer M, Levasseur MD, Cartwright TN, Weston B, Mitchell JL, Coxhead JM, Gaughan L, Prendergast L, Rico D, Higgins JMG

Publication type: Article

Publication status: Published

Journal: Nature Communications

Year: 2023

Volume: 14

Online publication date: 09/11/2023

Acceptance date: 31/10/2023

Date deposited: 20/11/2023

ISSN (electronic): 2041-1723

Publisher: Springer Nature

URL: https://doi.org/10.1038/s41467-023-43115-3

DOI: 10.1038/s41467-023-43115-3

Data Access Statement: Raw and processed ChIP-seq and CIDOP-seq data generated in this study have been deposited in the public Gene Expression Omnibus under GEO accession code GSE226768. The human reference genome GRCh38.p12 (GCA_000001405.27) used in this study is available from the National Center for Biotechnology Information [https://www.ncbi.nlm.nih.gov/datasets/genome/GCF_000001405.27/], and the HeLa H3K4me3 data used in Supplementary Fig. 3 is available from the ENCODE Portal [https://www.encodeproject.org/files/ENCFF489CIY/]. Source data are provided with this paper.


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Funding

Funder referenceFunder name
106951/Z/15/ZWellcome Trust
Barbour Foundation
EPSRC
J.G.W. Patterson Foundation
WM130089Royal Society

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