Accuracy and efficiency define Bxb1 integrase as the best of fifteen candidate serine recombinases for the integration of DNA into the human genome
Background: Phage-encoded serine integrases, such as φC31 integrase, are widely used for genome engineering. Fifteen such integrases have been described but their utility for genome engineering has not been compared in uniform assays. Results: We have compared fifteen serine integrases for their u...
| Main Authors: | , , , , , |
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| Format: | Article |
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BioMec Central
2013
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| Online Access: | https://eprints.nottingham.ac.uk/2976/ |
| _version_ | 1848790922136911872 |
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| author | Xu, Zhengyao Thomas, Louise Davies, Ben Chalmers, Ronald Smith, Maggie Brown, William |
| author_facet | Xu, Zhengyao Thomas, Louise Davies, Ben Chalmers, Ronald Smith, Maggie Brown, William |
| author_sort | Xu, Zhengyao |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Background: Phage-encoded serine integrases, such as φC31 integrase, are widely used for genome engineering. Fifteen
such integrases have been described but their utility for genome engineering has not been compared in uniform assays.
Results: We have compared fifteen serine integrases for their utility for DNA manipulations in mammalian cells after first
demonstrating that all were functional in E. coli. Chromosomal recombination reporters were used to show that seven
integrases were active on chromosomally integrated DNA in human fibroblasts and mouse embryonic stem cells. Five of
the remaining eight enzymes were active on extra-chromosomal substrates thereby demonstrating that the ability to
mediate extra-chromosomal recombination is no guide to ability to mediate site-specific recombination on integrated DNA.
All the integrases that were active on integrated DNA also promoted DNA integration reactions that were not mediated
through conservative site-specific recombination or damaged the recombination sites but the extent of these aberrant
reactions varied over at least an order of magnitude. Bxb1 integrase yielded approximately two-fold more recombinants and
displayed about two fold less damage to the recombination sites than the next best recombinase; φC31 integrase.
Conclusions:We conclude that the Bxb1 and φC31 integrases are the reagents of choice for genome engineering in
vertebrate cells and that DNA damage repair is a major limitation upon the utility of this class of site-specific recombinase.
Keywords: Serine recombinases, Genome manipulation, DNA damage |
| first_indexed | 2025-11-14T18:20:18Z |
| format | Article |
| id | nottingham-2976 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:20:18Z |
| publishDate | 2013 |
| publisher | BioMec Central |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-29762020-05-04T16:39:17Z https://eprints.nottingham.ac.uk/2976/ Accuracy and efficiency define Bxb1 integrase as the best of fifteen candidate serine recombinases for the integration of DNA into the human genome Xu, Zhengyao Thomas, Louise Davies, Ben Chalmers, Ronald Smith, Maggie Brown, William Background: Phage-encoded serine integrases, such as φC31 integrase, are widely used for genome engineering. Fifteen such integrases have been described but their utility for genome engineering has not been compared in uniform assays. Results: We have compared fifteen serine integrases for their utility for DNA manipulations in mammalian cells after first demonstrating that all were functional in E. coli. Chromosomal recombination reporters were used to show that seven integrases were active on chromosomally integrated DNA in human fibroblasts and mouse embryonic stem cells. Five of the remaining eight enzymes were active on extra-chromosomal substrates thereby demonstrating that the ability to mediate extra-chromosomal recombination is no guide to ability to mediate site-specific recombination on integrated DNA. All the integrases that were active on integrated DNA also promoted DNA integration reactions that were not mediated through conservative site-specific recombination or damaged the recombination sites but the extent of these aberrant reactions varied over at least an order of magnitude. Bxb1 integrase yielded approximately two-fold more recombinants and displayed about two fold less damage to the recombination sites than the next best recombinase; φC31 integrase. Conclusions:We conclude that the Bxb1 and φC31 integrases are the reagents of choice for genome engineering in vertebrate cells and that DNA damage repair is a major limitation upon the utility of this class of site-specific recombinase. Keywords: Serine recombinases, Genome manipulation, DNA damage BioMec Central 2013-10-20 Article PeerReviewed Xu, Zhengyao, Thomas, Louise, Davies, Ben, Chalmers, Ronald, Smith, Maggie and Brown, William (2013) Accuracy and efficiency define Bxb1 integrase as the best of fifteen candidate serine recombinases for the integration of DNA into the human genome. BMC Biotechnology, 13 . 87/1-87/17. ISSN 1472-6750 http://www.biomedcentral.com/1472-6750/13/87 doi:10.1186/1472-6750-13-87 doi:10.1186/1472-6750-13-87 |
| spellingShingle | Xu, Zhengyao Thomas, Louise Davies, Ben Chalmers, Ronald Smith, Maggie Brown, William Accuracy and efficiency define Bxb1 integrase as the best of fifteen candidate serine recombinases for the integration of DNA into the human genome |
| title | Accuracy and efficiency define Bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of DNA into the human genome |
| title_full | Accuracy and efficiency define Bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of DNA into the human genome |
| title_fullStr | Accuracy and efficiency define Bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of DNA into the human genome |
| title_full_unstemmed | Accuracy and efficiency define Bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of DNA into the human genome |
| title_short | Accuracy and efficiency define Bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of DNA into the human genome |
| title_sort | accuracy and efficiency define bxb1 integrase as
the best of fifteen candidate serine recombinases
for the integration of dna into the human genome |
| url | https://eprints.nottingham.ac.uk/2976/ https://eprints.nottingham.ac.uk/2976/ https://eprints.nottingham.ac.uk/2976/ |