Decomposition of the linking number of a closed ribbon: A problem from molecular biology.

Proceedings of the National Academy of Sciences of the United States of America ·Vol. 75 ·No. 8 ·1978-08-00 ·Pages 3557-61

Fuller FB

Abstract

A closed duplex DNA molecule relaxed and containing nucleosomes has a different linking number from the same molecule relaxed and without nucleosomes. What does this say about the structure of the nucleosome? A mathematical study of this question is made, representing the DNA molecule by a ribbon. It is shown that the linking number of a closed ribbon can be decomposed into the linking number of a reference ribbon plus a sum of locally determined "linking differences."

Authors & Affiliations

1 authors, click to expand affiliations / ORCID

Fuller F B

California Institute of Technology, Sloan 253-37, Pasadena, California 91125.

References (3)

3 references, click to expand

Linking numbers and nucleosomes.
Proc Natl Acad Sci U S A. 1976 Aug;73(8):2639-43 PMID: 1066673
Statistical mechanics and topology of polymer chains.
Nature. 1975 Dec 4;258(5534):398-402 PMID: 1196369
The writhing number of a space curve.
Proc Natl Acad Sci U S A. 1971 Apr;68(4):815-9 PMID: 5279522

Article Info

Journal

Proceedings of the National Academy of Sciences of the United States of America

Abbr.

Proc Natl Acad Sci U S A

ISSN

0027-8424

DOI

10.1073/pnas.75.8.3557

Published

1978-08-00

Pages

3557-61

Language

English

Region

United States

NLM ID

7505876

PMCID

PMC392823

External Links

PubMed source DOI: 10.1073/pnas.75.8.3557 PMC Full Text View journal details

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Decomposition of the linking number of a closed ribbon: A problem from molecular biology.

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