Journal article
A novel property of the RecA nucleoprotein filament: activation of double- stranded DNA for strand exchange in trans
Genes & development, v 13(15), pp 2005-2016
01 Aug 1999
PMID: 10444598
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
RecA protein catalyzes DNA strand exchange, a basic step of homologous recombination. Upon binding to single-stranded DNA (ssDNA), RecA protein forms a helical nucleoprotein filament. Normally, this nucleoprotein filament binds double-stranded DNA (dsDNA) and promotes exchange of base pairs between this dsDNA and the homologous ssDNA that is contained within this filament. Here, we demonstrate that this bound dsDNA can be activated by interaction with a heterologous RecA nucleoprotein filament for a novel type of strand exchange with homologous ssDNA that is external to, and, therefore, not within, the filament. We refer to this novel DNA strand exchange as being in
trans
. Thus, the RecA nucleoprotein filament is a protein scaffold that activates dsDNA for strand exchange with ssDNA either within the filament or external to it. This new property demonstrates that the RecA nucleoprotein filament makes dsDNA receptive for DNA strand exchange, and it defines an early step of the homology recognition mechanism.
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Details
- Title
- A novel property of the RecA nucleoprotein filament: activation of double- stranded DNA for strand exchange in trans
- Creators
- Alexander V Mazin - Division of Biological Sciences, Sections of Microbiology and of Molecular and Cellular Biology, University of California, Davis, California 95616-8665 USAStephen C Kowalczykowski - Division of Biological Sciences, Sections of Microbiology and of Molecular and Cellular Biology, University of California, Davis, California 95616-8665 USA
- Publication Details
- Genes & development, v 13(15), pp 2005-2016
- Publisher
- Cold Spring Harbor Laboratory Press
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biochemistry and Molecular Biology
- Web of Science ID
- WOS:000081971900011
- Scopus ID
- 2-s2.0-0033180144
- Other Identifier
- 991014877800204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Cell Biology
- Developmental Biology
- Genetics & Heredity