Histone acetylation status and DNA sequence modulate ATP-dependent nucleosome repositioning

doi:10.1074/jbc.M107510200

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Papers In Press, published online ahead of print February 21, 2002
J. Biol. Chem, 10.1074/jbc.M107510200
Submitted on August 6, 2001
Revised on February 19, 2002
Accepted on February 20, 2002

Histone acetylation status and DNA sequence modulate ATP-dependent nucleosome repositioning

Wladyslaw A. Krajewski

Biochemistry, Istitute of Developmental Biology, Moscow 117808

Corresponding Author: wkrajewski{at}hotmail.com

A cell-free system derived from Drosophila embryos was used to investigate positioning of nucleosome on specific DNA sequences. This system can be used to reconstitute differently acetylated nucleosome arrays, possessing ATP-dependent dynamic properties, which are not observed with chromatin assembled from pure components. Nucleosome positioning on different DNA sequences was studied by restriction endonuclease assay. The sequence of DNA and acetylation status of histones had profound effects on the distribution of nucleosomes, suggesting their cooperative effect on nucleosome repositioning.

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