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Type: Journal article
Title: Intronic ATTTC repeat expansions in STARD7 in familial adult myoclonic epilepsy linked to chromosome 2
Author: Corbett, M.A.
Kroes, T.
Veneziano, L.
Bennett, M.F.
Florian, R.
Schneider, A.L.
Coppola, A.
Licchetta, L.
Franceschetti, S.
Suppa, A.
Wenger, A.
Mei, D.
Pendziwiat, M.
Kaya, S.
Delledonne, M.
Straussberg, R.
Xumerle, L.
Regan, B.
Crompton, D.
van Rootselaar, A.-F.
et al.
Citation: Nature Communications, 2019; 10(1):4920-4920
Publisher: Springer Nature
Issue Date: 2019
ISSN: 2041-1723
Statement of
Mark A. Corbett ... Thessa Kroes ... Renee Carroll ... Allison Gardner ... Josef Gecz
Abstract: Familial Adult Myoclonic Epilepsy (FAME) is characterised by cortical myoclonic tremor usually from the second decade of life and overt myoclonic or generalised tonic-clonic seizures. Four independent loci have been implicated in FAME on chromosomes (chr) 2, 3, 5 and 8. Using whole genome sequencing and repeat primed PCR, we provide evidence that chr2-linked FAME (FAME2) is caused by an expansion of an ATTTC pentamer within the first intron of STARD7. The ATTTC expansions segregate in 158/158 individuals typically affected by FAME from 22 pedigrees including 16 previously reported families recruited worldwide. RNA sequencing from patient derived fibroblasts shows no accumulation of the AUUUU or AUUUC repeat sequences and STARD7 gene expression is not affected. These data, in combination with other genes bearing similar mutations that have been implicated in FAME, suggest ATTTC expansions may cause this disorder, irrespective of the genomic locus involved.
Keywords: Chromosomes, Human, Pair 2
Epilepsies, Myoclonic
Carrier Proteins
Chromosome Mapping
DNA Repeat Expansion
Middle Aged
Child, Preschool
Young Adult
Rights: © The Author(s) 2019. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
DOI: 10.1038/s41467-019-12671-y
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