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. 1976 Oct;73(10):3391–3393. doi: 10.1073/pnas.73.10.3391

A possible explanation for the nuclease limit digestion pattern of chromatin.

C R Cantor
PMCID: PMC431120  PMID: 1068452

Abstract

The general pattern of DNA fragments in the limit digest of nuclease-treated chromatin could arise from a single, unique nuclease-susceptible site per nucleosome. If DNA binds to the histone core of the nucleosome along a circularly re-entrant path, the location of the DNA entrance and exit can occur at any of a number of distinct sites. This very specific type of heterogeneity together with the natural 10-fold periodicity of DNA B can account for the observed digestion pattern. Such a general picture of the nucleosome structure could also easily explain how nucleosomes might move along the DNA. This type of structure should be easy to distinguish experimentally form more conventional explanations of the origin of the limit digest pattern of chromatin.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Axel R. Cleavage of DNA in nuclei and chromatin with staphylococcal nuclease. Biochemistry. 1975 Jul;14(13):2921–2925. doi: 10.1021/bi00684a020. [DOI] [PubMed] [Google Scholar]
  2. Axel R., Melchior W., Jr, Sollner-Webb B., Felsenfeld G. Specific sites of interaction between histones and DNA in chromatin. Proc Natl Acad Sci U S A. 1974 Oct;71(10):4101–4105. doi: 10.1073/pnas.71.10.4101. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Baldwin J. P., Boseley P. G., Bradbury E. M., Ibel K. The subunit structure of the eukaryotic chromosome. Nature. 1975 Jan 24;253(5489):245–249. doi: 10.1038/253245a0. [DOI] [PubMed] [Google Scholar]
  4. Clark R. J., Felsenfeld G. Structure of chromatin. Nat New Biol. 1971 Jan 27;229(4):101–106. doi: 10.1038/newbio229101a0. [DOI] [PubMed] [Google Scholar]
  5. Crick F. H., Klug A. Kinky helix. Nature. 1975 Jun 12;255(5509):530–533. doi: 10.1038/255530a0. [DOI] [PubMed] [Google Scholar]
  6. D'Anna J. A., Jr, Isenberg I. A histone cross-complexing pattern. Biochemistry. 1974 Nov 19;13(24):4992–4997. doi: 10.1021/bi00721a019. [DOI] [PubMed] [Google Scholar]
  7. Germond J. E., Hirt B., Oudet P., Gross-Bellark M., Chambon P. Folding of the DNA double helix in chromatin-like structures from simian virus 40. Proc Natl Acad Sci U S A. 1975 May;72(5):1843–1847. doi: 10.1073/pnas.72.5.1843. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Griffith J. D. Chromatin structure: deduced from a minichromosome. Science. 1975 Mar 28;187(4182):1202–1203. doi: 10.1126/science.187.4182.1202. [DOI] [PubMed] [Google Scholar]
  9. Hewish D. R., Burgoyne L. A. Chromatin sub-structure. The digestion of chromatin DNA at regularly spaced sites by a nuclear deoxyribonuclease. Biochem Biophys Res Commun. 1973 May 15;52(2):504–510. doi: 10.1016/0006-291x(73)90740-7. [DOI] [PubMed] [Google Scholar]
  10. Kornberg R. D. Chromatin structure: a repeating unit of histones and DNA. Science. 1974 May 24;184(4139):868–871. doi: 10.1126/science.184.4139.868. [DOI] [PubMed] [Google Scholar]
  11. Kornberg R. D., Thomas J. O. Chromatin structure; oligomers of the histones. Science. 1974 May 24;184(4139):865–868. doi: 10.1126/science.184.4139.865. [DOI] [PubMed] [Google Scholar]
  12. Lacy E., Axel R. Analysis of DNA of isolated chromatin subunits. Proc Natl Acad Sci U S A. 1975 Oct;72(10):3978–3982. doi: 10.1073/pnas.72.10.3978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Li H. J. A model for chromatin structure. Nucleic Acids Res. 1975 Aug;2(8):1275–1289. doi: 10.1093/nar/2.8.1275. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Noll M. Internal structure of the chromatin subunit. Nucleic Acids Res. 1974 Nov;1(11):1573–1578. doi: 10.1093/nar/1.11.1573. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Noll M. Subunit structure of chromatin. Nature. 1974 Sep 20;251(5472):249–251. doi: 10.1038/251249a0. [DOI] [PubMed] [Google Scholar]
  16. Olins A. L., Olins D. E. Spheroid chromatin units (v bodies). Science. 1974 Jan 25;183(4122):330–332. doi: 10.1126/science.183.4122.330. [DOI] [PubMed] [Google Scholar]
  17. Shaw B. R., Herman T. M., Kovacic R. T., Beaudreau G. S., Van Holde K. E. Analysis of subunit organization in chicken erythrocyte chromatin. Proc Natl Acad Sci U S A. 1976 Feb;73(2):505–509. doi: 10.1073/pnas.73.2.505. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Sollner-Webb B., Felsenfeld G. A comparison of the digestion of nuclei and chromatin by staphylococcal nuclease. Biochemistry. 1975 Jul;14(13):2915–2920. doi: 10.1021/bi00684a019. [DOI] [PubMed] [Google Scholar]
  19. Thomas J. O., Kornberg R. D. An octamer of histones in chromatin and free in solution. Proc Natl Acad Sci U S A. 1975 Jul;72(7):2626–2630. doi: 10.1073/pnas.72.7.2626. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Van Holde K. E., Sahasrabuddhe C. G., Shaw B. R. A model for particulate structure in chromatin. Nucleic Acids Res. 1974 Nov;1(11):1579–1586. doi: 10.1093/nar/1.11.1579. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Weintraub H., Van Lente F. Dissection of chromosome structure with trypsin and nucleases. Proc Natl Acad Sci U S A. 1974 Oct;71(10):4249–4253. doi: 10.1073/pnas.71.10.4249. [DOI] [PMC free article] [PubMed] [Google Scholar]

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