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Nucleosome positioning and gene regulation
Journal article   Open access   Peer reviewed

Nucleosome positioning and gene regulation

Quinn Lu, Lori L Wallrath and Sarah C. R Elgin
Journal of cellular biochemistry, Vol.55(1), pp.83-92
05/1994
DOI: 10.1002/jcb.240550110
PMID: 8083303
url
https://doi.org/10.1002/jcb.240550110View
Published (Version of record) Open Access

Abstract

Recent genetic and biochemical studies have revealed critical information concerning the role of nucleosomes in eukaryotic gene regulation. Nucleosomes package DNA into a dynamic chromatin structure, and by assuming defined positions in chromatin, influence gene regulation. Nucleosomes can serve as repressors, presumably by blocking access to regulatory elements; consequently, the positions of nucleosomes relative to the location of cis‐acting elements are critical. Some genes have a chromatin structure that is “preset,” ready for activation, while others require “remodeling” for activation. Nucleosome positioning may be determined by multiple factors, including histone–DNA interactions, boundaries defined by DNA structure or protein binding, and higher‐order chromatin structure. © 1994 Wiley‐Liss, Inc.
preset/remodeling gene repression/activation repressors chromatin structure nucleosome positioning

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