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Biochem Cell Biol April 1, 2017; 95 (2): 171-178.

Linker histones: novel insights into structure-specific recognition of the nucleosome.

Cutter AR , Hayes JJ .

Linker histones (H1s) are a primary component of metazoan chromatin, fulfilling numerous functions, both in vitro and in vivo, including stabilizing the wrapping of DNA around the nucleosome, promoting folding and assembly of higher order chromatin structures, influencing nucleosome spacing on DNA, and regulating specific gene expression. However, many molecular details of how H1 binds to nucleosomes and recognizes unique structural features on the nucleosome surface remain undefined. Numerous, confounding studies are complicated not only by experimental limitations, but the use of different linker histone isoforms and nucleosome constructions. This review summarizes the decades of research that has resulted in several models of H1 association with nucleosomes, with a focus on recent advances that suggest multiple modes of H1 interaction in chromatin, while highlighting the remaining questions.

PubMed ID: 28177778
PMC ID: PMC5654525
Article link: Biochem Cell Biol
Grant support: [+]
Genes referenced: h1-3

References [+] :
Allan, The structure of histone H1 and its location in chromatin. 1981, Pubmed

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