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Cited by 309

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Enhanced Specificity and Efficiency of the CRISPR/Cas9 System with Optimized sgRNA Parameters in Drosophila

Open access
Ren, Xingjie, Yang, Zhihao, Xu, Jiang, Sun, Jin, Mao, Decai, Hu, Yanhui, Yang, Su-Juan, Qiao, Huan-Huan, Wang, Xia, Hu, Qun, Deng, Patricia, Liu, Lu-Ping, Ji, Jun-Yuan, Li, Jin Billy, Ni, Jian-Quan·2014·Cell Reports

Abstract

The CRISPR/Cas9 system has recently emerged as a powerful tool for functional genomic studies in Drosophila melanogaster. However, single-guide RNA (sgRNA) parameters affecting the specificity and efficiency of the system in flies are still not clear. Here, we found that off-target effects did not occur in regions of genomic DNA with three or more nucleotide mismatches to sgRNAs. Importantly, we document for a strong positive correlation between mutagenesis efficiency and sgRNA GC content of the six protospacer-adjacent motif-proximal nucleotides (PAMPNs). Furthermore, by injecting well-designed sgRNA plasmids at the optimal concentration we determined, we could efficiently generate mutations in four genes in one step. Finally, we generated null alleles of HP1a using optimized parameters through homology-directed repair and achieved an overall mutagenesis rate significantly higher than previously reported. Our work demonstrates a comprehensive optimization of sgRNA and promises to vastly simplify CRISPR/Cas9 experiments in Drosophila.

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Metadata

Authors
Ren, X., Yang, Z., Xu, J., Sun, J., Mao, D., Hu, Y., Yang, S.-J., Qiao, H.-H., Wang, X., Hu, Q., Deng, P., Liu, L.-P., Ji, J.-Y., Li, J. B., & Ni, J.-Q.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2014-11
Volume
9
Issue
3
Pages
1151-1162
ISSN
2211-1247 (ISSN-L)
OpenAlex
W1971305813
Cited by
309
References
19
FWCI
11.44
Type
journal article
Language
en
Open access
gold

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The paper
Ren, X., Yang, Z., Xu, J., Sun, J., Mao, D., Hu, Y., Yang, S.-J., Qiao, H.-H., Wang, X., Hu, Q., Deng, P., Liu, L.-P., Ji, J.-Y., Li, J. B., & Ni, J.-Q. (2014). Enhanced Specificity and Efficiency of the CRISPR/Cas9 System with Optimized sgRNA Parameters in Drosophila. Cell Reports. https://doi.org/10.1016/j.celrep.2014.09.044

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