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Updated: Aug 11, 2026
14:23
Recombineering Homologous Recombination Constructs in Drosophila
Published on: July 13, 2013
New insight into site-specific recombination from Flp recombinase-DNA structures
1Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637, USA. yuchen@midway.uchicago.edu
Annual Review of Biophysics and Biomolecular Structure
|February 25, 2003
Summary
Lambda integrase and Flp recombinase are crucial for DNA manipulation. New structural and biochemical data reveal details of their catalytic mechanisms and regulation.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Site-specific recombinases, like lambda integrase, are essential for DNA recombination.
- Flp recombinase, from yeast, is key for maintaining plasmid copy number.
- These enzymes facilitate DNA insertion, excision, and inversion.
Purpose of the Study:
- To elucidate the catalytic mechanisms of lambda integrase and Flp recombinase.
- To understand the regulation of Flp recombinase activity.
- To identify specific protein residues involved in catalysis.
Main Methods:
- X-ray crystallography to determine Flp structures.
- Biochemical assays to study enzyme activity.
- Solution-based biophysical techniques.
Main Results:
- New Flp structures reveal details of active site assembly.
- Solution data provides insights into Flp activity regulation.
- Specific protein residues contributing to catalysis were identified.
Conclusions:
- Flp recombinase utilizes a unique mechanism for active site assembly and regulation.
- Understanding these mechanisms offers insights into DNA recombination.
- Further research can leverage these findings for biotechnological applications.
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