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. 1992 Jan;174(1):155–160. doi: 10.1128/jb.174.1.155-160.1992

In vitro repair of double-strand breaks accompanied by recombination in bacteriophage T7 DNA.

W Masker 1
PMCID: PMC205689  PMID: 1309515

Abstract

A double-strand break in a bacteriophage T7 genome significantly reduced the ability of that DNA to produce viable phage when the DNA was incubated in an in vitro DNA replication and packaging system. When a homologous piece of T7 DNA (either a restriction fragment or T7 DNA cloned into a plasmid) that was by itself unable to form a complete phage was included in the reaction, the break was repaired to the extent that many more viable phage were produced. Moreover, repair could be completed even when a gap of about 900 nucleotides was put in the genome by two nearby restriction cuts. The repair was accompanied by acquisition of a genetic marker that was present only on the restriction fragment or on the T7 DNA cloned into a plasmid. These data are interpreted in light of the double-strand gap repair mode of recombination.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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