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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The sex-linked fidget mutation abolishes Brn4/Pou3f4 gene expression in the embryonic inner ear.

We have demonstrated that the phenotype of the mouse mutant sex-linked fidget ( slf ) is caused by developmental malformations of the inner ear that result in hearing loss and vestibular dysfunction. Recently, pilot mapping experiments suggested that the mouse Brn4 / Pou3f4 gene co-segregated with the slf locus on the mouse X chromosome. These mapping data, in conjunction with the observation that the vertical head-shaking phenotype of slf mutants is identical to that observed in mice with a targeted deletion of the Brn4 gene, suggested that slf is a mutant allele of the Brn4 gene. In this paper, we have identified the nature of the slf mutation, and demonstrated that it is an X chromosomal inversion with one breakpoint close to Brn4. This inversion selectively eliminates the expression of the Brn4 gene in the developing inner ear, but not the neural tube. Finally, these results demonstrate that the slf mutation is a good mouse model for the most prevalent form of X-linked congenital deafness in man, which is associated with mutations in the human Brn4 ortholog, POU3F4.[1]

References

  1. The sex-linked fidget mutation abolishes Brn4/Pou3f4 gene expression in the embryonic inner ear. Phippard, D., Boyd, Y., Reed, V., Fisher, G., Masson, W.K., Evans, E.P., Saunders, J.C., Crenshaw, E.B. Hum. Mol. Genet. (2000) [Pubmed]
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