Linking numbers and nucleosomes.
نویسنده
چکیده
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.
منابع مشابه
Topological diversity of chromatin fibers: Interplay between nucleosome repeat length, DNA linking number and the level of transcription
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ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 73 8 شماره
صفحات -
تاریخ انتشار 1976