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XB-ART-19017
J Biol Chem 1995 Nov 17;27046:27399-402.
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Disruption of reconstituted nucleosomes. The effect of particle concentration, MgCl2 and KCl concentration, the histone tails, and temperature.

Godde JS , Wolffe AP .


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We find that reconstituted nucleosome cores containing specific DNA sequences dissociate on dilution. This disruption of histone-DNA contacts leading to the release of free DNA is facilitated by the presence of the core histone tails, MgCl2 (5 mM), KCl (60 mM), and temperatures above 0 degree C. Under reaction conditions that are commonly used to assess trans-acting factor access to nucleosomal DNA, histone-DNA contacts are on the threshold of instability. We demonstrate how dilution of reconstituted nucleosomes containing a TATA box can facilitate TBP access to DNA.

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Species referenced: Xenopus
Genes referenced: tbp