Universität zu Köln

Lal, Dennis, Reinthaler, Eva M., Altmueller, Janine, Toliat, Mohammad R., Thiele, Holger, Nuernberg, Peter, Lerche, Holger, Hahn, Andreas, Moller, Rikke S., Muhle, Hiltrud, Sander, Thomas, Zimprich, Fritz ORCID: 0000-0002-6998-5480 and Neubauer, Bernd A. (2013). RBFOX1 and RBFOX3 Mutations in Rolandic Epilepsy. PLoS One, 8 (9). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1932-6203

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Abstract

Partial deletions of the gene encoding the neuronal splicing regulator RBFOX1 have been reported in a range of neurodevelopmental diseases, including idiopathic generalized epilepsy. The RBFOX1 protein and its homologues (RBFOX2 and RBFOX3) regulate alternative splicing of many neuronal transcripts involved in the homeostatic control of neuronal excitability. In this study, we explored if structural microdeletions and exonic sequence variations in RBFOX1, RBFOX2, RBFOX3 confer susceptibility to rolandic epilepsy (RE), a common idiopathic focal childhood epilepsy. By high-density SNP array screening of 289 unrelated RE patients, we identified two hemizygous deletions, a 365 kb deletion affecting two untranslated 5'-terminal exons of RBFOX1 and a 43 kb deletion spanning exon 3 of RBFOX3. Exome sequencing of 242 RE patients revealed two novel probably deleterious variants in RBFOX1, a frameshift mutation (p. A233Vfs*74) and a hexanucleotide deletion (p. A299_A300del), and a novel nonsense mutation in RBFOX3 (p. Y287*). Although the three variants were inherited from unaffected parents, they were present in all family members exhibiting the RE trait clinically or electroencephalographically with only one exception. In contrast, no deleterious mutations of RBFOX1 and RBFOX3 were found in the exomes of 6503 non-RE subjects deposited in the Exome Variant Server database. The observed RBFOX3 exon 3 deletion and nonsense mutation suggest that RBFOX3 represents a novel risk factor for RE, indicating that exon deletions and truncating mutations of RBFOX1 and RBFOX3 contribute to the genetic variance of partial and generalized idiopathic epilepsy syndromes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lal, Dennis UNSPECIFIED UNSPECIFIED UNSPECIFIED Reinthaler, Eva M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Altmueller, Janine UNSPECIFIED UNSPECIFIED UNSPECIFIED Toliat, Mohammad R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Thiele, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED Nuernberg, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Lerche, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED Hahn, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Moller, Rikke S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Muhle, Hiltrud UNSPECIFIED UNSPECIFIED UNSPECIFIED Sander, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED Zimprich, Fritz UNSPECIFIED orcid.org/0000-0002-6998-5480 UNSPECIFIED Neubauer, Bernd A. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-476057
DOI:	10.1371/journal.pone.0073323
Journal or Publication Title:	PLoS One
Volume:	8
Number:	9
Date:	2013
Publisher:	PUBLIC LIBRARY SCIENCE
Place of Publication:	SAN FRANCISCO
ISSN:	1932-6203
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BENIGN PARTIAL EPILEPSY; PSEUDO-LENNOX-SYNDROME; CENTROTEMPORAL SPIKES; SPLICING FACTORS; SHARP WAVES; GENE; CHILDHOOD; PHENOTYPES; FAMILIES; CHILDREN Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47605