Electron microscopy of defined lengths of chromatin.
- 1 September 1975
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 72 (9) , 3320-3322
- https://doi.org/10.1073/pnas.72.9.3320
Abstract
Defined lengths of chromatin were prepared by brief digestion with micrococcal nuclease and fractionation in a sucrose gradient. A length containing a given number of 200 base pair repeating units appeared as the same number of 100 A beads in the electron microscope. The distance between beads within a length was small, usually less than about 20 A.Keywords
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