Recombination by the Flp recombinase of Saccharomyces cerevisiae is known to be inhibited by heterology of the overlap regions of the two recombining DNA targets (FRT sites). We have used topological analysis to show that Flp can promote two rounds of intramolecular recombination between heterologous FRT sites contained within the same supercoiled plasmid. The products are in parental nonrecombinant configuration. Thus, heterology may appear to “block” recombination by rendering the heteroduplex recombinant products unstable, thus favoring a second round of recombination to homoduplex (but parental) products. Hence, homology in the core region is not a requirement for the recombination reaction by Flp but for the formation of recombinant products.
Topological Analysis of the Role of Homology in Flp-mediated Recombination*
Naiyer Azam,J. Dixon,P. Sadowski
Published 1997 in Journal of Biological Chemistry
ABSTRACT
PUBLICATION RECORD
- Publication year
1997
- Venue
Journal of Biological Chemistry
- Publication date
1997-03-28
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
CITATION MAP
EXTRACTION MAP
CLAIMS
- No claims are published for this paper.
CONCEPTS
- No concepts are published for this paper.
REFERENCES
Showing 1-60 of 60 references · Page 1 of 1
CITED BY
Showing 1-17 of 17 citing papers · Page 1 of 1