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The structure of a virus-encoded nucleosome
Journal article   Peer reviewed

The structure of a virus-encoded nucleosome

Marco Igor Valencia-Sánchez, Stephen Abini-Agbomson, Miao Wang, Rachel Lee, Nikita Vasilyev, Jenny Zhang, Pablo De Ioannes, Bernard La Scola, Paul Talbert, Steve Henikoff, …
Nature structural & molecular biology, Vol.28(5), pp.413-417
05/2021
DOI: 10.1038/s41594-021-00585-7
PMCID: PMC8370576
PMID: 33927388

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Abstract

Certain large DNA viruses, including those in the Marseilleviridae family, encode histones. Here we show that fused histone pairs Hβ-Hα and Hδ-Hγ from Marseillevirus are structurally analogous to the eukaryotic histone pairs H2B-H2A and H4-H3. These viral histones form 'forced' heterodimers, and a heterotetramer of four such heterodimers assembles DNA to form structures virtually identical to canonical eukaryotic nucleosomes.
DNA - chemistry DNA - metabolism DNA Viruses - genetics DNA Viruses - metabolism Histones - chemistry Histones - metabolism Nucleosomes - metabolism Protein Binding Protein Structural Elements Protein Structure, Tertiary

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