A recurrent mutation in KCNA2 as a novel cause of hereditary spastic paraplegia and ataxia.
A recurrent mutation in KCNA2 as a novel cause of hereditary spastic paraplegia and ataxia.
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DOI:
10.1002/ana.24762
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发表时间:
2016-10
影响因子:
11.2
通讯作者:
Lemke, Johannes R.
中科院分区:
文献类型:
--
作者:
Helbig, Katherine L.;Hedrich, Ulrike B. S.;Shinde, Deepali N.;Krey, Ilona;Teichmann, Anne-Christin;Hentschel, Julia;Schubert, Julian;Chamberlin, Adam C.;Huether, Robert;Lu, Hsiao-Mei;Alcaraz, Wendy A.;Tang, Sha;Jungbluth, Chelsy;Dugan, Sarah L.;Vainionpaa, Leena;Karle, Kathrin N.;Synofzik, Matthis;Schols, Ludger;Schule, Rebecca;Lehesjoki, Anna-Elina;Helbig, Ingo;Lerche, Holger;Lemke, Johannes R.
The hereditary spastic paraplegias (HSPs) are heterogeneous neurodegenerative disorders with over 50 known causative genes. We identified a recurrent mutation in KCNA2 (c.881G>A, p.R294H), encoding the voltage‐gated K+‐channel, KV1.2, in two unrelated families with HSP, intellectual disability (ID), and ataxia. Follow‐up analysis of > 2,000 patients with various neurological phenotypes identified a de novo p.R294H mutation in a proband with ataxia and ID. Two‐electrode voltage‐clamp recordings of Xenopus laevis oocytes expressing mutant KV1.2 channels showed loss of function with a dominant‐negative effect. Our findings highlight the phenotypic spectrum of a recurrent KCNA2 mutation, implicating ion channel dysfunction as a novel HSP disease mechanism. Ann Neurol 2016
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影响因子:
16.2
作者:
Aggarwal, SK;MacKinnon, R
通讯作者:
MacKinnon, R
影响因子:
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通讯作者:
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通讯作者:
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