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XB-ART-51606
Nat Commun 2014 Nov 20;5:5560. doi: 10.1038/ncomms6560.
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Microhomology-mediated end-joining-dependent integration of donor DNA in cells and animals using TALENs and CRISPR/Cas9.

Nakade S , Tsubota T , Sakane Y , Kume S , Sakamoto N , Obara M , Daimon T , Sezutsu H , Yamamoto T , Sakuma T , Suzuki KT .


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Genome engineering using programmable nucleases enables homologous recombination (HR)-mediated gene knock-in. However, the labour used to construct targeting vectors containing homology arms and difficulties in inducing HR in some cell type and organisms represent technical hurdles for the application of HR-mediated knock-in technology. Here, we introduce an alternative strategy for gene knock-in using transcription activator-like effector nucleases (TALENs) and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9) mediated by microhomology-mediated end-joining, termed the PITCh (Precise Integration into Target Chromosome) system. TALEN-mediated PITCh, termed TAL-PITCh, enables efficient integration of exogenous donor DNA in human cells and animals, including silkworms and frogs. We further demonstrate that CRISPR/Cas9-mediated PITCh, termed CRIS-PITCh, can be applied in human cells without carrying the plasmid backbone sequence. Thus, our PITCh-ing strategies will be useful for a variety of applications, not only in cultured cells, but also in various organisms, including invertebrates and vertebrates.

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Species referenced: Xenopus
Genes referenced: fbl hsp90aa1.1 kidins220 krt12.2 npm3


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References [+] :
Auer, Highly efficient CRISPR/Cas9-mediated knock-in in zebrafish by homology-independent DNA repair. 2014, Pubmed