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. 1997 Jan;15(1):42-6.
doi: 10.1038/ng0197-42.

Mutations of the TWIST gene in the Saethre-Chotzen syndrome

V el Ghouzzi  1 , M Le Merrer, F Perrin-Schmitt, E Lajeunie, P Benit, D Renier, P Bourgeois, A L Bolcato-Bellemin, A Munnich, J Bonaventure
Affiliations

Mutations of the TWIST gene in the Saethre-Chotzen syndrome

V el Ghouzzi et al. Nat Genet. 1997 Jan.

Abstract

Saethre-Chotzen syndrome (acrocephalo-syndactyly type III, ACS III) is an autosomal dominant craniosynostosis with brachydactyly, soft tissue syndactyly and facial dysmorphism including ptosis, facial asymmetry and prominent ear crura. ACS III has been mapped to chromosome 7p21-22. Of interest, TWIST, the human counterpart of the murine Twist gene, has been localized on chromosome 7p21 as well. The Twist gene product is a transcription factor containing a basic helix-loop-helix (b-HLH) domain, required in head mesenchyme for cranial neural tube morphogenesis in mice. The co-localisation of ACS III and TWIST prompted us to screen ACS III patients for TWIST gene mutations especially as mice heterozygous for Twist null mutations displayed skull defects and duplication of hind leg digits. Here, we report 21-bp insertions and nonsense mutations of the TWIST gene (S127X, E130X) in seven ACS III probands and describe impairment of head mesenchyme induction by TWIST as a novel pathophysiological mechanism in human craniosynostoses.

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Comment in

  • Twist and shout.
    Dixon MJ. Dixon MJ. Nat Genet. 1997 Jan;15(1):3-4. doi: 10.1038/ng0197-3. Nat Genet. 1997. PMID: 8988156 No abstract available.

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