학술논문
Defining genome-wide CRISPR-Cas genome-editing nuclease activity with GUIDE-seq
Document Type
Report
Author
Source
Nature Protocols. December 2021, Vol. 16 Issue 12, p5592, 24 p.
Subject
Language
English
ISSN
1754-2189
Abstract
Author(s): Nikolay L. Malinin [sup.1] , GaHyun Lee [sup.1] , Cicera R. Lazzarotto [sup.1] , Yichao Li [sup.1] , Zongli Zheng [sup.2] , Nhu T. Nguyen [sup.3] [sup.4] , Matthew [...]
Genome-wide unbiased identification of double-stranded breaks enabled by sequencing (GUIDE-seq) is a sensitive, unbiased, genome-wide method for defining the activity of genome-editing nucleases in living cells. GUIDE-seq is based on the principle of efficient integration of an end-protected double-stranded oligodeoxynucleotide tag into sites of nuclease-induced DNA double-stranded breaks, followed by amplification of tag-containing genomic DNA molecules and high-throughput sequencing. Here we describe a detailed GUIDE-seq protocol including cell transfection, library preparation, sequencing and bioinformatic analysis. The entire protocol including cell culture can be completed in 9 d. Once tag-integrated genomic DNA is isolated, library preparation, sequencing and analysis can be performed in 3 d. The result is a genome-wide catalog of off-target sites ranked by nuclease activity as measured by GUIDE-seq read counts. GUIDE-seq is one of the most sensitive cell-based methods for defining genome-wide off-target activity and has been broadly adopted for research and therapeutic use. GUIDE-seq (genome-wide unbiased identification of double-stranded breaks enabled by sequencing) is a sensitive, unbiased, genome-wide method for defining the specificity of genome-editing nucleases in living cells.
Genome-wide unbiased identification of double-stranded breaks enabled by sequencing (GUIDE-seq) is a sensitive, unbiased, genome-wide method for defining the activity of genome-editing nucleases in living cells. GUIDE-seq is based on the principle of efficient integration of an end-protected double-stranded oligodeoxynucleotide tag into sites of nuclease-induced DNA double-stranded breaks, followed by amplification of tag-containing genomic DNA molecules and high-throughput sequencing. Here we describe a detailed GUIDE-seq protocol including cell transfection, library preparation, sequencing and bioinformatic analysis. The entire protocol including cell culture can be completed in 9 d. Once tag-integrated genomic DNA is isolated, library preparation, sequencing and analysis can be performed in 3 d. The result is a genome-wide catalog of off-target sites ranked by nuclease activity as measured by GUIDE-seq read counts. GUIDE-seq is one of the most sensitive cell-based methods for defining genome-wide off-target activity and has been broadly adopted for research and therapeutic use. GUIDE-seq (genome-wide unbiased identification of double-stranded breaks enabled by sequencing) is a sensitive, unbiased, genome-wide method for defining the specificity of genome-editing nucleases in living cells.