Detection of genome-edited mutant clones by a simple competition-based PCR method.

Genome editing by the CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR-associated protein 9) system is a revolutionary strategy to study gene functions. Since the efficiency of gene disruption in cell culture does not reach 100% typically, cloning of mutant cells is of...

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Main Authors: Takeshi Harayama, Howard Riezman
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5460891?pdf=render
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spelling doaj-78c89f6dd2dc4cdc864a5e93f11c9e0b2020-11-24T20:41:38ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01126e017916510.1371/journal.pone.0179165Detection of genome-edited mutant clones by a simple competition-based PCR method.Takeshi HarayamaHoward RiezmanGenome editing by the CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR-associated protein 9) system is a revolutionary strategy to study gene functions. Since the efficiency of gene disruption in cell culture does not reach 100% typically, cloning of mutant cells is often performed to obtain fully mutated cells. Therefore, a method to discriminate accurately mutated clones easily and quickly is crucial to accelerate the research using CRISPR/Cas9. Here, we show that knockout cells can be discriminated by a competition-based PCR, using a mixture of three primers, among which one primer overlaps with the Cas9 cleavage site. Together, we show how to optimize primer design in order to improve the effectiveness of the discrimination. Finally, we applied this method to show that mutations conferring drug resistance can be detected with high accuracy. The provided method is easy to perform and requires only basic laboratory equipment, making it suitable for almost all laboratories.http://europepmc.org/articles/PMC5460891?pdf=render
collection DOAJ
language English
format Article
sources DOAJ
author Takeshi Harayama
Howard Riezman
spellingShingle Takeshi Harayama
Howard Riezman
Detection of genome-edited mutant clones by a simple competition-based PCR method.
PLoS ONE
author_facet Takeshi Harayama
Howard Riezman
author_sort Takeshi Harayama
title Detection of genome-edited mutant clones by a simple competition-based PCR method.
title_short Detection of genome-edited mutant clones by a simple competition-based PCR method.
title_full Detection of genome-edited mutant clones by a simple competition-based PCR method.
title_fullStr Detection of genome-edited mutant clones by a simple competition-based PCR method.
title_full_unstemmed Detection of genome-edited mutant clones by a simple competition-based PCR method.
title_sort detection of genome-edited mutant clones by a simple competition-based pcr method.
publisher Public Library of Science (PLoS)
series PLoS ONE
issn 1932-6203
publishDate 2017-01-01
description Genome editing by the CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR-associated protein 9) system is a revolutionary strategy to study gene functions. Since the efficiency of gene disruption in cell culture does not reach 100% typically, cloning of mutant cells is often performed to obtain fully mutated cells. Therefore, a method to discriminate accurately mutated clones easily and quickly is crucial to accelerate the research using CRISPR/Cas9. Here, we show that knockout cells can be discriminated by a competition-based PCR, using a mixture of three primers, among which one primer overlaps with the Cas9 cleavage site. Together, we show how to optimize primer design in order to improve the effectiveness of the discrimination. Finally, we applied this method to show that mutations conferring drug resistance can be detected with high accuracy. The provided method is easy to perform and requires only basic laboratory equipment, making it suitable for almost all laboratories.
url http://europepmc.org/articles/PMC5460891?pdf=render
work_keys_str_mv AT takeshiharayama detectionofgenomeeditedmutantclonesbyasimplecompetitionbasedpcrmethod
AT howardriezman detectionofgenomeeditedmutantclonesbyasimplecompetitionbasedpcrmethod
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