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Mutations in ROGDI Cause Kohlschütter-Tönz Syndrome.

Abstract：

: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.

journal_name

Am J Hum Genet

journal_title

American journal of human genetics

authors

Schossig A,Wolf NI,Fischer C,Fischer M,Stocker G,Pabinger S,Dander A,Steiner B,Tönz O,Kotzot D,Haberlandt E,Amberger A,Burwinkel B,Wimmer K,Fauth C,Grond-Ginsbach C,Koch MJ,Deichmann A,von Kalle C,Bartram CR,Kohls

doi

10.1016/j.ajhg.2012.02.012

subject

Has Abstract

pub_date

2012-04-06 00:00:00

pages

701-7

issue

4

eissn

0002-9297

issn

1537-6605

pii

S0002-9297(12)00097-3

journal_volume

90

pub_type

杂志文章

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