RBFOX1 and RBFOX3 mutations in rolandic epilepsy.
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...
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oai:doaj.org-article:c75163a24f994194b80d2d5d069360962021-11-18T08:56:32ZRBFOX1 and RBFOX3 mutations in rolandic epilepsy.1932-620310.1371/journal.pone.0073323https://doaj.org/article/c75163a24f994194b80d2d5d069360962013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24039908/?tool=EBIhttps://doaj.org/toc/1932-6203Partial 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.Dennis LalEva M ReinthalerJanine AltmüllerMohammad R ToliatHolger ThielePeter NürnbergHolger LercheAndreas HahnRikke S MøllerHiltrud MuhleThomas SanderFritz ZimprichBernd A NeubauerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 9, p e73323 (2013) |
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EN |
| topic |
Medicine R Science Q |
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Medicine R Science Q Dennis Lal Eva M Reinthaler Janine Altmüller Mohammad R Toliat Holger Thiele Peter Nürnberg Holger Lerche Andreas Hahn Rikke S Møller Hiltrud Muhle Thomas Sander Fritz Zimprich Bernd A Neubauer RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| description |
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. |
| format |
article |
| author |
Dennis Lal Eva M Reinthaler Janine Altmüller Mohammad R Toliat Holger Thiele Peter Nürnberg Holger Lerche Andreas Hahn Rikke S Møller Hiltrud Muhle Thomas Sander Fritz Zimprich Bernd A Neubauer |
| author_facet |
Dennis Lal Eva M Reinthaler Janine Altmüller Mohammad R Toliat Holger Thiele Peter Nürnberg Holger Lerche Andreas Hahn Rikke S Møller Hiltrud Muhle Thomas Sander Fritz Zimprich Bernd A Neubauer |
| author_sort |
Dennis Lal |
| title |
RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| title_short |
RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| title_full |
RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| title_fullStr |
RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| title_full_unstemmed |
RBFOX1 and RBFOX3 mutations in rolandic epilepsy. |
| title_sort |
rbfox1 and rbfox3 mutations in rolandic epilepsy. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2013 |
| url |
https://doaj.org/article/c75163a24f994194b80d2d5d06936096 |
| work_keys_str_mv |
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