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CORALINA: a universal method for the generation of gRNA libraries for CRISPR-based screening

Koeferle, A; Worf, K; Breunig, C; Baumann, V; Herrero, J; Wiesbeck, M; Hutter, LH; ... Stricker, SH; + view all (2016) CORALINA: a universal method for the generation of gRNA libraries for CRISPR-based screening. BMC Genomics , 17 , Article 917. 10.1186/s12864-016-3268-z. Green open access

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Abstract

BACKGROUND: The bacterial CRISPR system is fast becoming the most popular genetic and epigenetic engineering tool due to its universal applicability and adaptability. The desire to deploy CRISPR-based methods in a large variety of species and contexts has created an urgent need for the development of easy, time- and cost-effective methods enabling large-scale screening approaches. RESULTS: Here we describe CORALINA (comprehensive gRNA library generation through controlled nuclease activity), a method for the generation of comprehensive gRNA libraries for CRISPR-based screens. CORALINA gRNA libraries can be derived from any source of DNA without the need of complex oligonucleotide synthesis. We show the utility of CORALINA for human and mouse genomic DNA, its reproducibility in covering the most relevant genomic features including regulatory, coding and non-coding sequences and confirm the functionality of CORALINA generated gRNAs. CONCLUSIONS: The simplicity and cost-effectiveness make CORALINA suitable for any experimental system. The unprecedented sequence complexities obtainable with CORALINA libraries are a necessary pre-requisite for less biased large scale genomic and epigenomic screens.

Type: Article
Title: CORALINA: a universal method for the generation of gRNA libraries for CRISPR-based screening
Open access status: An open access version is available from UCL Discovery
DOI: 10.1186/s12864-016-3268-z
Publisher version: https://doi.org/10.1186/s12864-016-3268-z
Language: English
Additional information: Copyright © The Author(s) 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Keywords: gRNA library, Genome-wide, Cas9, Genetic engineering, Epigenetic engineering, Elongated protospacer, Epigenome editing
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Cancer Institute > Research Department of Cancer Bio
URI: https://discovery.ucl.ac.uk/id/eprint/1529010
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