Exome sequencing in a family with restless legs syndrome

Anne Weissbach, Katharina Siegesmund, Norbert Brüggemann, Alexander Schmidt, Meike Kasten, Irene Pichler, Hiltrud Muhle, Ebba Lohmann, Thora Lohnau, Eberhard Schwinger, Johann Hagenah, Ulrich Stephani, Peter P. Pramstaller, Christine Klein*, Katja Lohmann

*Corresponding author for this work
13 Citations (Scopus)


Background:: Restless legs syndrome (RLS) has a high familial aggregation. To date, several loci and genetic risk factors have been identified, but no causative gene mutation has been found. Methods:: We evaluated a German family with autosomal dominantly inherited RLS in 7 definitely and 2 possibly affected members by genome-wide linkage analysis and exome sequencing. Results:: We identified three novel missense and one splice site variant in the PCDHA3, WWC2, ATRN, and FAT2 genes that segregated with RLS in the family. All four exons of the PCDHA3 gene, the most plausible candidate, were sequenced in 64 unrelated RLS cases and 250 controls. This revealed three additional rare missense variants (frequency <1%) of unknown pathogenicity in 2 patients and 1 control. Conclusions:: We present the first next-generation sequencing study on RLS and suggest PCDHA3 as a candidate gene for RLS.

Original languageEnglish
JournalMovement Disorders
Issue number13
Pages (from-to)1686-1689
Number of pages4
Publication statusPublished - 01.11.2012


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