Abstract
Gene inactivation in mouse embryonic stem (ES) cells usually affects a single allele that is subsequently transmitted to the mouse germline. Upon breeding to homozygosity the consequences of complete gene ablation can be studied in the context of the complete organism. In many cases, it can be useful to study the consequences of gene ablation already in ES cells, for example, when a cellular phenotype is expected. This requires both alleles of a gene to be disrupted. Besides consecutive targeting by using different selectable marker genes, homozygosity for gene disruption can also be obtained by selecting cells for duplication of (part of) the chromosome carrying the targeted allele with concomitant loss of the wild-type allele.
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Acknowledgments
The protocols in this chapter were designed and refined by many workers in this field. We thank our colleagues Marieke Aarts, Sandra de Vries, and Jan-Hermen Dannenberg for sharing their experiences on the various aspects of gene targeting in embryonic stem cells. We acknowledge financial support from the Dutch Cancer Society (NKI 2004-3084).
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© 2009 Humana Press, a part of Springer Science+Business Media, LLC
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Wielders, E., Dekker, M., Riele, H.t. (2009). Generation of Double-Knockout Embryonic Stem Cells. In: Wurst, W., Kühn, R. (eds) Gene Knockout Protocols. Methods in Molecular Biology, vol 530. Humana Press. https://doi.org/10.1007/978-1-59745-471-1_11
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DOI: https://doi.org/10.1007/978-1-59745-471-1_11
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