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Science 29 October 1976:
Vol. 194. no. 4264, pp. 529 - 532
DOI: 10.1126/science.973136
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Articles

Science, Vol 194, Issue 4264, 529-532
Copyright © 1976 by American Association for the Advancement of Science

articles

Ribosomal genes of Xenopus laevis: evidence of nucleosomes in transcriptionally active chromatin

R Reeves

Most of the reiterated ribosomal genes in the somatic cells of larvae of a mutant of Xenopus laevis appear to be protected from short-term nuclease digestion by being packaged in the form of chromatin subunits or nucleosomes. Since these mutant animals probably require all of their ribosomal genes to be active in order to maintain viability, at least some of the transcriptionally active gene sequences are probably associated with chromatin subunits. Thus, association of DNA with nucleosomes may not necessarily preclude template activity, although such association is probably of a dynamic rather than a static nature.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Histones Associated with Non-nucleosomal Rat Ribosomal Genes Are Acetylated while Those Bound to Nucleosome-organized Gene Copies Are Not.
V. J. Mutskov, V. R. Russanova, S. I. Dimitrov, and I. G. Pashev (1996)
J. Biol. Chem. 271, 11852-11857
   Abstract »    Full Text »    PDF »
Model for the Structure of the Active Nucleolar Chromatin.
P. Labhart, P. Ness, E. Banz, R. Parish, and T. Roller (1983)
Cold Spring Harb Symp Quant Biol 47, 557-564
   Abstract »    PDF »
Structural Organization and Control of the Ribosomal Genes in Physarum.
V. G. Allfrey, E. M. Johnson, I. Y.-C. Sun, V. C. Littau, H. R. Matthews, and E. M. Bradbury (1978)
Cold Spring Harb Symp Quant Biol 42, 505-514
   Abstract »    PDF »
Structure of Xenopus Ribosomal Gene Chromatin during Changes in Genomic Transcription Rates.
R. Reeves (1978)
Cold Spring Harb Symp Quant Biol 42, 709-722
   Abstract »    PDF »
Modulation of Ribosomal RNA Synthesis in Oncopeltus fasciatus: An Electron Microscopic Study of the Relationship between Changes in Chromatin Structure and Transcriptional Activity.
V. E. Foe (1978)
Cold Spring Harb Symp Quant Biol 42, 723-740
   Abstract »    PDF »
Morphology of Transcriptionally Active Chromatin.
W. W. Franke, U. Scheer, M. Trendelenburg, H. Zentgraf, and H. Spring (1978)
Cold Spring Harb Symp Quant Biol 42, 755-772
   Abstract »    PDF »
Structure of rDNA-containing Chromatin of Tetrahymena pyriformis Analyzed by Nuclease Digestion.
D. J. Mathis and M. A. Gorovsky (1978)
Cold Spring Harb Symp Quant Biol 42, 773-778
   Abstract »    PDF »
Nucleosome Structure III: The Structure and Transcriptional Activity of the Chromatin Containing the Ovalbumin and Globin Genes in Chick Oviduct Nuclei.
M. Bellard, F. Gannon, and P. Chambon (1978)
Cold Spring Harb Symp Quant Biol 42, 779-791
   Abstract »    PDF »


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