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sgRNAcas9: A Software Package for Designing CRISPR sgRNA and Evaluating Potential Off-Target Cleavage Sites

Open access
Xie, Shengsong, Shen, Bin, Zhang, Chaobao, Huang, Xingxu, Zhang, Yonglian·2014·PLoS ONE

Abstract

Although the CRISPR/Cas9/sgRNA system efficiently cleaves intracellular DNA at desired target sites, major concerns remain on potential "off-target" cleavage that may occur throughout the whole genome. In order to improve CRISPR-Cas9 specificity for targeted genome editing and transcriptional control, we describe a bioinformatics tool "sgRNAcas9", which is a software package developed for fast design of CRISPR sgRNA with minimized off-target effects. This package consists of programs to perform a search for CRISPR target sites (protospacers) with user-defined parameters, predict genome-wide Cas9 potential off-target cleavage sites (POT), classify the POT into three categories, batch-design oligonucleotides for constructing 20-nt (nucleotides) or truncated sgRNA expression vectors, extract desired length nucleotide sequences flanking the on- or off-target cleavage sites for designing PCR primer pairs to validate the mutations by T7E1 cleavage assay. Importantly, by identifying potential off-target sites in silico, the sgRNAcas9 allows the selection of more specific target sites and aids the identification of bona fide off-target sites, significantly facilitating the design of sgRNA for genome editing applications. sgRNAcas9 software package is publicly available at BiooTools website (www.biootools.com) under the terms of the GNU General Public License.

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Metadata

Authors
Xie, S., Shen, B., Zhang, C., Huang, X., & Zhang, Y.
Venue
PLoS ONE
Published
2014-06-23
Volume
9
Issue
6
Pages
e100448
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2133836136
Cited by
417
References
40
FWCI
11.32
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: sgRNAcas9: A Software Package for Designing CRISPR sgRNA and Evaluating Potential Off-Target Cleavage Sites. https://app.cochat.ai/papers/10.1371/journal.pone.0100448
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Xie, S., Shen, B., Zhang, C., Huang, X., & Zhang, Y. (2014). sgRNAcas9: A Software Package for Designing CRISPR sgRNA and Evaluating Potential Off-Target Cleavage Sites. PLoS ONE. https://doi.org/10.1371/journal.pone.0100448

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