Abstract

The POU4F3 transcription factor is expressed in the cochlear and vestibular hair cells of the inner ear and its targeted deletion results in a loss of inner ear hair cells. The DFNA15 truncation mutation has been demonstrated to result in a loss of transcriptional activity, but an increase in the stability of the protein. Molecular modelling is utilised to propose a mechanism of stability enhancement, via an interaction between the truncated POU(HD) domain and the POU(S) domain of the transcription factor.

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