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Am J Hum Genet. 2013 Mar 7;92(3):392-400. doi: 10.1016/j.ajhg.2013.02.004. Epub 2013 Feb 28.

Whole-exome sequencing identifies mutated c12orf57 in recessive corpus callosum hypoplasia.

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  • 1Department of Neurosciences and Pediatrics, Howard Hughes Medical Institute, University of California, San Diego, CA 92093, USA.

Abstract

The corpus callosum is the principal cerebral commissure connecting the right and left hemispheres. The development of the corpus callosum is under tight genetic control, as demonstrated by abnormalities in its development in more than 1,000 genetic syndromes. We recruited more than 25 families in which members affected with corpus callosum hypoplasia (CCH) lacked syndromic features and had consanguineous parents, suggesting recessive causes. Exome sequence analysis identified C12orf57 mutations at the initiator methionine codon in four different families. C12orf57 is ubiquitously expressed and encodes a poorly annotated 126 amino acid protein of unknown function. This protein is without significant paralogs but has been tightly conserved across evolution. Our data suggest that this conserved gene is required for development of the human corpus callosum.

Copyright © 2013 The American Society of Human Genetics. Published by Elsevier Inc. All rights reserved.

PMID:
23453666
[PubMed - indexed for MEDLINE]
PMCID:
PMC3591854
Free PMC Article
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