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Journal of Bacteriology, February 1999, p. 1035-1038, Vol. 181, No. 3
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Archaeal Nucleosome Positioning by CTG Repeats

Kathleen Sandman* and John N. Reeve

Department of Microbiology, Ohio State University, Columbus, Ohio 43210

Received 19 October 1998/Accepted 13 November 1998

DNA shape recognition determines the preferred binding sites for sequence-independent DNA binding proteins, and here we document that archaeal histones assemble archaeal nucleosomes in vitro centered preferentially within (CTG)6 and (CTG)8 repeats, close to junctions with flanking mixed-sequence DNA. Archaeal nucleosomes were not positioned by (CTG)4-, (CTG)5-, or (CTG)3AA(CTG)3-containing DNA sequences. The features of CTG repeat-containing sequences that direct eucaryal nucleosome positioning may also be similarly recognized by archaeal histones.

* Corresponding author. Mailing address: Department of Microbiology, Ohio State University, 484 W. 12th Ave., Columbus, OH 43210. Phone: (614) 292-6890. Fax: (614) 292-8120. E-mail: sandman.1{at}osu.edu.

Journal of Bacteriology, February 1999, p. 1035-1038, Vol. 181, No. 3
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.




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