Mutations in ROGDI cause Kohlschütter-Tönz syndrome
Kohlschütter-Tönz syndrome (KTS) is an autosomal-recessive disease characterized by the combination of epilepsy, psychomotor regression, and amelogenesis imperfecta. The molecular basis has not yet been elucidated. Here, we report that KTS is caused by mutations in ROGDI. Using a combination of au...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
March 15, 2012
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| In: |
The American journal of human genetics
Year: 2012, Volume: 90, Issue: 4, Pages: 701-707 |
| ISSN: | 1537-6605 |
| DOI: | 10.1016/j.ajhg.2012.02.012 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.ajhg.2012.02.012 Verlag, Volltext: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3322220/ 
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| Author Notes: | Anna Schossig, Nicole I. Wolf, Christine Fischer, Maria Fischer, Gernot Stocker, Stephan Pabinger, Andreas Dander, Bernhard Steiner, Otmar Tönz, Dieter Kotzot, Edda Haberlandt, Albert Amberger, Barbara Burwinkel, Katharina Wimmer, Christine Fauth, Caspar Grond-Ginsbach, Martin J. Koch, Annette Deichmann, Christof von Kalle, Claus R. Bartram, Alfried Kohlschütter, Zlatko Trajanoski, and Johannes Zschocke |
| Summary: | Kohlschütter-Tönz syndrome (KTS) is an autosomal-recessive disease characterized by the combination of epilepsy, psychomotor regression, and amelogenesis imperfecta. The molecular basis has not yet been elucidated. Here, we report that KTS is caused by mutations in ROGDI. Using a combination of autozygosity mapping and exome sequencing, we identified a homozygous frameshift deletion, c.229_230del (p.Leu77Alafs∗64), in ROGDI in two affected individuals from a consanguineous family. Molecular studies in two additional KTS-affected individuals from two unrelated Austrian and Swiss families revealed homozygosity for nonsense mutation c.286C>T (p.Gln96∗) and compound heterozygosity for the splice-site mutations c.531+5G>C and c.532-2A>T in ROGDI, respectively. The latter mutation was also found to be heterozygous in the mother of the Swiss affected individual in whom KTS was reported for the first time in 1974. ROGDI is highly expressed throughout the brain and other organs, but its function is largely unknown. Possible interactions with DISC1, a protein involved in diverse cytoskeletal functions, have been suggested. Our finding that ROGDI mutations cause KTS indicates that the protein product of this gene plays an important role in neuronal development as well as amelogenesis. |
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| Item Description: | Gesehen am 27.07.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1537-6605 |
| DOI: | 10.1016/j.ajhg.2012.02.012 |