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Generation of a multipurpose Prdm16 mouse allele by targeted gene trapping
Journal article   Open access   Peer reviewed

Generation of a multipurpose Prdm16 mouse allele by targeted gene trapping

Alexander Strassman, Frank Schnuetgen, Qi Dai, Jennifer C. Jones, Angela C. Gomez, Lenore Pitstick, Nathan E. Holton, Russell Moskal, Erin R. Leslie, Harald von Melchner, …
Disease models & mechanisms, Vol.10(7), pp.909-922
07/01/2017
DOI: 10.1242/dmm.029561
PMCID: PMC5536910
PMID: 28424158
url
https://doi.org/10.1242/dmm.029561View
Published (Version of record) Open Access

Abstract

Gene trap mutagenesis is a powerful tool to create loss-of-function mutations in mice and other model organisms. Modifications of traditional gene trap cassettes, including addition of conditional features in the form of Flip-excision (FlEx) arrays to enable directional gene trap cassette inversions by Cre and Flpe site-specific recombinases, greatly enhanced their experimental potential. By taking advantage of these conditional gene trap cassettes, we developed a generic strategy for generating conditional mutations and validated this strategy in mice carrying a multipurpose allele of the Prdm16 transcription factor gene. We demonstrate that the gene trap insertion creates a null mutation replicating the Pierre Robin sequence-type cleft palate phenotype of other Prdm16 mutant mice. Consecutive breeding to Flpe and Emx1(IREScre) deleter mice spatially restricted Prdm16 loss to regions of the forebrain expressing the homeobox gene Emx1, demonstrating the utility of the technology for the analysis of tissue-specific gene functions.
Cell Biology Life Sciences & Biomedicine Pathology Science & Technology

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