X-ray structure of a tetranucleosome and its implications for the chromatin fibre

Thomas Schalch, Sylwia Duda, David F. Sargent and Timothy J. Richmond ()
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Thomas Schalch: Institute for Molecular Biology and Biophysics, ETH–Hönggerberg
Sylwia Duda: Institute for Molecular Biology and Biophysics, ETH–Hönggerberg
David F. Sargent: Institute for Molecular Biology and Biophysics, ETH–Hönggerberg
Timothy J. Richmond: Institute for Molecular Biology and Biophysics, ETH–Hönggerberg

Nature, 2005, vol. 436, issue 7047, 138-141

Abstract: Chromatin organization The fundamental level of DNA organization was revealed in 1997 with the determination of the nucleosome core structure. The crystal structure of a tetranucleosome has now been determined at 9Å resolution, showing how nucleosomes are arranged at the next level up, in the chromosomes that are the substrate for DNA replication. The nucleosomes form a two-start helix, and their geometry in the chromatin matrix is best described by the ‘crossed-linker’ model.

Date: 2005
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DOI: 10.1038/nature03686

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