Title |
A chromosomal rearrangement in a child with severe speech and language disorder separates FOXP2 from a functional enhancer
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Published in |
Molecular Cytogenetics, August 2015
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DOI | 10.1186/s13039-015-0173-0 |
Pubmed ID | |
Authors |
Martin Becker, Paolo Devanna, Simon E. Fisher, Sonja C. Vernes |
Abstract |
Mutations of FOXP2 in 7q31 cause a rare disorder involving speech apraxia, accompanied by expressive and receptive language impairments. A recent report described a child with speech and language deficits, and a genomic rearrangement affecting chromosomes 7 and 11. One breakpoint mapped to 7q31 and, although outside its coding region, was hypothesised to disrupt FOXP2 expression. We identified an element 2 kb downstream of this breakpoint with epigenetic characteristics of an enhancer. We show that this element drives reporter gene expression in human cell-lines. Thus, displacement of this element by translocation may disturb gene expression, contributing to the observed language phenotype. |
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