Genome-wide CRISPR guide RNA design and specificity analysis with GuideScan2.

Publication Type Academic Article
Authors Schmidt H, Zhang M, Chakarov D, Bansal V, Mourelatos H, Sánchez-Rivera F, Lowe S, Ventura A, Leslie C, Pritykin Y
Journal Genome Biol
Volume 26
Issue 1
Pagination 41
Date Published 02/26/2025
ISSN 1474-760X
Keywords RNA, Guide, CRISPR-Cas Systems, CRISPR-Cas Systems, Software
Abstract We present GuideScan2 for memory-efficient, parallelizable construction of high-specificity CRISPR guide RNA (gRNA) databases and user-friendly design and analysis of individual gRNAs and gRNA libraries for targeting coding and non-coding regions in custom genomes. GuideScan2 analysis identifies widespread confounding effects of low-specificity gRNAs in published CRISPR screens and enables construction of a gRNA library that reduces off-target effects in a gene essentiality screen. GuideScan2 also enables the design and experimental validation of allele-specific gRNAs in a hybrid mouse genome. GuideScan2 will facilitate CRISPR experiments across a wide range of applications.
DOI 10.1186/s13059-025-03488-8
PubMed ID 40011959
PubMed Central ID PMC11863968
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