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Review
. 2012 Nov;131(11):1687-98.
doi: 10.1007/s00439-012-1193-z. Epub 2012 Jun 27.

The distinct and overlapping phenotypic spectra of FOXP1 and FOXP2 in cognitive disorders

Claire Bacon  1 , Gudrun A Rappold
Affiliations
Review

The distinct and overlapping phenotypic spectra of FOXP1 and FOXP2 in cognitive disorders

Claire Bacon et al. Hum Genet. 2012 Nov.

Abstract

Rare disruptions of FOXP2 have been strongly implicated in deficits in language development. Research over the past decade has suggested a role in the formation of underlying neural circuits required for speech. Until recently no evidence existed to suggest that the closely related FOXP1 gene played a role in neurodevelopmental processes. However, in the last few years, novel rare disruptions in FOXP1 have been reported in multiple cases of cognitive dysfunction, including intellectual disability and autism spectrum disorder, together with language impairment. As FOXP1 and FOXP2 form heterodimers for transcriptional regulation, one may assume that they co-operate in common neurodevelopmental pathways through the co-regulation of common targets. Here we compare the phenotypic consequences of FOXP1 and FOXP2 impairment, drawing on well-known studies from the past as well as recent exciting findings and consider what these tell us regarding the functions of these two genes in neural development.

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Figures

Fig. 1
Fig. 1
Summary of similarities and differences between FOXP1 and FOXP2 neuronal phenotypes
Fig. 2
Fig. 2
Summary of different FOXP1 (below) and FOXP2 (above) mutations decribed. See Tables 1 and 2 for reference details. Variant S339AfsX4 was identified by whole exome sequencing and an additional missense variant in the CNTNAP2 gene was also present in this individual
See this image and copyright information in PMC

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