Abstract
The first DNA joint formed in homologous recombination processes is a D-loop. Saccharomyces cerevisiae RDH54/TID1-encoded product, a Swi2/Snf2-like factor involved in recombination, is shown here to promote D-loop formation with Rad51 recombinase. Physical interaction between Rdh54 and Rad51 is functionally important because Rdh54 does not enhance the recombinase activity of the Escherichia coliRecA protein. Robust dsDNA-activated ATPase activity in Rdh54 generates unconstrained negative and positive supercoils in DNA. Efficient D-loop formation occurs with even topologically relaxed DNA, suggesting that via specific protein–protein interactions, the negative supercoils produced by Rdh54 are used by Rad51 for making DNA joints.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 8 p.m.) |
Deposited | 3 years, 9 months ago (Nov. 14, 2021, 10:37 p.m.) |
Indexed | 3 months, 3 weeks ago (April 30, 2025, 8:33 p.m.) |
Issued | 24 years, 11 months ago (Sept. 1, 2000) |
Published | 24 years, 11 months ago (Sept. 1, 2000) |
Published Online | 24 years, 11 months ago (Sept. 1, 2000) |
Published Print | 24 years, 11 months ago (Sept. 1, 2000) |
@article{Petukhova_2000, title={Promotion of Rad51-dependent D-loop formation by yeast recombination factor Rdh54/Tid1}, volume={14}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.826100}, DOI={10.1101/gad.826100}, number={17}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Petukhova, Galina and Sung, Patrick and Klein, Hannah}, year={2000}, month=sep, pages={2206–2215} }