ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites

<p>Abstract</p> <p>Background</p> <p>Zinc Finger Nucleases (ZFNs) are man-made restriction enzymes useful for manipulating genomes by cleaving target DNA sequences. ZFNs allow therapeutic gene correction or creation of genetically modified model organisms. ZFN specifici...

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Main Authors: Iseli Christian, Ambrosini Giovanna, Cradick Thomas J, Bucher Philipp, McCaffrey Anton P
Format: Article
Language:English
Published: BMC 2011-05-01
Series:BMC Bioinformatics
Online Access:http://www.biomedcentral.com/1471-2105/12/152
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author Iseli Christian
Ambrosini Giovanna
Cradick Thomas J
Bucher Philipp
McCaffrey Anton P
author_facet Iseli Christian
Ambrosini Giovanna
Cradick Thomas J
Bucher Philipp
McCaffrey Anton P
author_sort Iseli Christian
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Zinc Finger Nucleases (ZFNs) are man-made restriction enzymes useful for manipulating genomes by cleaving target DNA sequences. ZFNs allow therapeutic gene correction or creation of genetically modified model organisms. ZFN specificity is not absolute; therefore, it is essential to select ZFN target sites without similar genomic off-target sites. It is important to assay for off-target cleavage events at sites similar to the target sequence.</p> <p>Results</p> <p>ZFN-Site is a web interface that searches multiple genomes for ZFN off-target sites. Queries can be based on the target sequence or can be expanded using degenerate specificity to account for known ZFN binding preferences. ZFN off-target sites are outputted with links to genome browsers, facilitating off-target cleavage site screening. We verified ZFN-Site using previously published ZFN half-sites and located their target sites and their previously described off-target sites. While we have tailored this tool to ZFNs, ZFN-Site can also be used to find potential off-target sites for other nucleases, such as TALE nucleases.</p> <p>Conclusions</p> <p>ZFN-Site facilitates genome searches for possible ZFN cleavage sites based on user-defined stringency limits. ZFN-Site is an improvement over other methods because the FetchGWI search engine uses an indexed search of genome sequences for all ZFN target sites and possible off-target sites matching the half-sites and stringency limits. Therefore, ZFN-Site does not miss potential off-target sites.</p>
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spelling doaj.art-a590cdf9ad934c239f63311c2328ee092022-12-21T22:10:19ZengBMCBMC Bioinformatics1471-21052011-05-0112115210.1186/1471-2105-12-152ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sitesIseli ChristianAmbrosini GiovannaCradick Thomas JBucher PhilippMcCaffrey Anton P<p>Abstract</p> <p>Background</p> <p>Zinc Finger Nucleases (ZFNs) are man-made restriction enzymes useful for manipulating genomes by cleaving target DNA sequences. ZFNs allow therapeutic gene correction or creation of genetically modified model organisms. ZFN specificity is not absolute; therefore, it is essential to select ZFN target sites without similar genomic off-target sites. It is important to assay for off-target cleavage events at sites similar to the target sequence.</p> <p>Results</p> <p>ZFN-Site is a web interface that searches multiple genomes for ZFN off-target sites. Queries can be based on the target sequence or can be expanded using degenerate specificity to account for known ZFN binding preferences. ZFN off-target sites are outputted with links to genome browsers, facilitating off-target cleavage site screening. We verified ZFN-Site using previously published ZFN half-sites and located their target sites and their previously described off-target sites. While we have tailored this tool to ZFNs, ZFN-Site can also be used to find potential off-target sites for other nucleases, such as TALE nucleases.</p> <p>Conclusions</p> <p>ZFN-Site facilitates genome searches for possible ZFN cleavage sites based on user-defined stringency limits. ZFN-Site is an improvement over other methods because the FetchGWI search engine uses an indexed search of genome sequences for all ZFN target sites and possible off-target sites matching the half-sites and stringency limits. Therefore, ZFN-Site does not miss potential off-target sites.</p>http://www.biomedcentral.com/1471-2105/12/152
spellingShingle Iseli Christian
Ambrosini Giovanna
Cradick Thomas J
Bucher Philipp
McCaffrey Anton P
ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
BMC Bioinformatics
title ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
title_full ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
title_fullStr ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
title_full_unstemmed ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
title_short ZFN-Site searches genomes for zinc finger nuclease target sites and off-target sites
title_sort zfn site searches genomes for zinc finger nuclease target sites and off target sites
url http://www.biomedcentral.com/1471-2105/12/152
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AT cradickthomasj zfnsitesearchesgenomesforzincfingernucleasetargetsitesandofftargetsites
AT bucherphilipp zfnsitesearchesgenomesforzincfingernucleasetargetsitesandofftargetsites
AT mccaffreyantonp zfnsitesearchesgenomesforzincfingernucleasetargetsitesandofftargetsites