The subunit structure of the eukaryotic chromosome
- 1 January 1975
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature
- Vol. 253 (5489), 245-249
- https://doi.org/10.1038/253245a0
Abstract
New structural data have been obtained from neutron scattering studies of chromatin. The concentration-dependent meridional peak at 10–11 nm comes from the interparticle spacing of a subunit structure. Peaks at 5.5 and 3.7 nm have a different contrast behaviour to those at 11.0 and 3.7 nm showing that histones and DNA have a different spatial arrangement in the subunit. A globular model in which apolar segments of histones form the core surrounded by DNA complexed with the basic segments of histones agrees with the data.Keywords
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