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Linking numbers and nucleosomes.

By F H Crick

Abstract

In considering supercoils formed by closed double-stranded molecules of DNA certain mathematical concepts, such as the linking number and the twist, are needed. The meaning of these for a closed ribbon is explained and also that of the writhing number of a closed curve. Some simple examples are given, some of which may be relevant to the structure of chromatin

Topics: Research Article
Year: 1976
DOI identifier: 10.1073/pnas.73.8.2639
OAI identifier: oai:pubmedcentral.nih.gov:430703
Provided by: PubMed Central
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