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Positioning of a Nucleosome on Mouse Satellite DNA Inserted into a Yeast Plasmid Is Determined by Its DNA Sequence and an Adjacent Nucleosome

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Abstract

It has earlier been shown that multiple positioning of nucleosomes on mouse satellite DNA is determined by its nucleotide sequence. To clarify whether other factors, such as boundary ones, can affect the positionings, we modified the environment of satellite DNA monomer by inserting it into a yeast plasmid between inducible GalCyc promoter and a structural region of the yeast FLP gene. We have revealed that the positions of nucleosomes on satellite DNA are identical to those detected upon reconstruction in vitro. The positioning signal (GAAAAA sequence) of satellite DNA governs nucleosome location at the adjacent nucleotide sequence as well. Upon promoter induction the nucleosome, translationally positioned on the GalCyc promoter, transfers to the satellite DNA and its location follows the positioning signal of the latter. Thus, the alternatives of positioning of a nucleosome on satellite DNA are controlled by its nucleotide sequence, though the choice of one of them is determined by the adjacent nucleosome.

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Kiryanov, G.I., Kintsurashvili, L.N., Isaeva, L.V. et al. Positioning of a Nucleosome on Mouse Satellite DNA Inserted into a Yeast Plasmid Is Determined by Its DNA Sequence and an Adjacent Nucleosome. Biochemistry (Moscow) 69, 1044–1050 (2004). https://doi.org/10.1023/B:BIRY.0000043547.86807.d4

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  • DOI: https://doi.org/10.1023/B:BIRY.0000043547.86807.d4

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