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Cell Rep. 2015 Feb 10;10(5):833-839. doi: 10.1016/j.celrep.2015.01.016. Epub 2015 Feb 7.

Deletions, Inversions, Duplications: Engineering of Structural Variants using CRISPR/Cas in Mice.

Author information

1
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
2
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany; Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, 13353 Berlin, Germany.
3
Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, 13353 Berlin, Germany.
4
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité Universitätsmedizin Berlin, 13353 Berlin, Germany.
5
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany; Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, 13353 Berlin, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité Universitätsmedizin Berlin, 13353 Berlin, Germany.
6
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany; Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, 13353 Berlin, Germany; Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité Universitätsmedizin Berlin, 13353 Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies (BSRT), Charité Universitätsmedizin Berlin, 13353 Berlin, Germany.
7
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany. Electronic address: lupianez@molgen.mpg.de.
8
Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany. Electronic address: andrey@molgen.mpg.de.

Abstract

Structural variations (SVs) contribute to the variability of our genome and are often associated with disease. Their study in model systems was hampered until now by labor-intensive genetic targeting procedures and multiple mouse crossing steps. Here we present the use of CRISPR/Cas for the fast (10 weeks) and efficient generation of SVs in mice. We specifically produced deletions, inversions, and also duplications at six different genomic loci ranging from 1.1 kb to 1.6 Mb with efficiencies up to 42%. After PCR-based selection, clones were successfully used to create mice via aggregation. To test the practicability of the method, we reproduced a human 500 kb disease-associated deletion and were able to recapitulate the human phenotype in mice. Furthermore, we evaluated the regulatory potential of a large genomic interval by deleting a 1.5 Mb fragment. The method presented permits rapid in vivo modeling of genomic rearrangements.

PMID:
25660031
DOI:
10.1016/j.celrep.2015.01.016
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