ENZYMATIC CLEAVAGE AND REPAIR OF TRANSFORMING DNA
- 1 January 1969
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 62 (1), 289-296
- https://doi.org/10.1073/pnas.62.1.289
Abstract
Single-strand nicks caused by DNase I are capable of inactivating B. subtilis transforming DNA. Under suitable conditions, the polynucleotide joining enzyme from E. coli and a similar DPN-requiring activity from B. subtilis can completely repair this damage, restore biological activity, and increase the single-strand molecular weight. The rates of inactivation of a single genetic marker and of a four-marker linkage group suggest that a single-strand nick is inactivating even when far from the site of genetic damage.Keywords
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