doi: 10.1093/nar/4.9.3199.
The structure of the chromatin core particle in solution
- PMID: 561952
- PMCID: PMC342644
- DOI: 10.1093/nar/4.9.3199
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The structure of the chromatin core particle in solution
Nucleic Acids Res.
1977 Sep.
Free PMC article
Abstract
The shape and size of the nucleosomal core particle from chromatin has been examined by analysis of neutron and X-ray scattering data from dilute solutions. Calculations of scattering for many different models have been made and only one model was able to account for both the X-ray and neutron profiles. This model is an oblate structure with height about 50A and diameter 110A. The DNA is mainly confined to two annuli located at the top and bottom respectively of the core particle positioned on the outside of a compact protein core which has a height of about 40A and diameter about 73A.
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