Jaime M. Williams and Tyler F. Beck contributed equally to this work.
Article first published online: 15 JUL 2009
Copyright © 2009 Wiley-Liss, Inc.
American Journal of Medical Genetics Part A
Volume 149A, Issue 8, pages 1758–1762, August 2009
How to Cite
Williams, J. M., Beck, T. F., Pearson, D. M., Proud, M. B., Cheung, S. W. and Scott, D. A. (2009), A 1q42 deletion involving DISC1, DISC2, and TSNAX in an autism spectrum disorder. Am. J. Med. Genet., 149A: 1758–1762. doi: 10.1002/ajmg.a.32941
How to cite this article: Williams JM, Beck TF, Pearson DM, Proud MB, Cheung SW, Scott DA. 2009. A 1q42 deletion involving DISC1, DISC2, and TSNAX in an autism spectrum disorder. Am J Med Genet Part A 149A:1758–1762.
- Issue published online: 23 JUL 2009
- Article first published online: 15 JUL 2009
- Manuscript Accepted: 27 APR 2009
- Manuscript Received: 23 DEC 2008
- autism spectrum disorder;
- chromosome 1q42
Individuals with autism spectrum disorders have impairments in social, communicative, and behavior development that are often accompanied by abnormalities in cognitive functioning, learning, attention, and sensory processing. In this report, we describe a 3-year-old male child with an autism spectrum disorder who carries a 2 Mb deletion of chromosome 1q42. Array comparative genome hybridization revealed that this deletion involves at least three genes—DISC1, DISC2, and TSNAX—which have been found to be associated with neuropsychiatric disorders and are likely to play key roles in normal CNS development. Further studies revealed that the deletion was inherited from his unaffected mother. This suggests that other genetic and/or environmental factors, some of which may be sex specific, may modify the phenotypic effects of this deletion. While this case provides evidence for the potential role of DISC1, DISC2, and TSNAX in the development of autism spectrum disorders, it is equally clear that caution must be taken when providing families with prognostic information and genetic counseling regarding such deletions. © 2009 Wiley-Liss, Inc.