Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.nmd.2008.05.007
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dc.titleNovel chloride channel mutations leading to mild myotonia among Chinese
dc.contributor.authorBurgunder, J.-M.
dc.contributor.authorEng, C.S.
dc.contributor.authorSeet, R.C.S.
dc.contributor.authorLim, E.C.H.
dc.contributor.authorOng, B.K.C.
dc.contributor.authorBeguin, P.
dc.contributor.authorHunziker, W.
dc.contributor.authorBaur, R.
dc.contributor.authorSigel, E.
dc.date.accessioned2011-09-27T05:14:57Z
dc.date.available2011-09-27T05:14:57Z
dc.date.issued2008
dc.identifier.citationBurgunder, J.-M., Eng, C.S., Seet, R.C.S., Lim, E.C.H., Ong, B.K.C., Beguin, P., Hunziker, W., Baur, R., Sigel, E. (2008). Novel chloride channel mutations leading to mild myotonia among Chinese. Neuromuscular Disorders 18 (8) : 633-640. ScholarBank@NUS Repository. https://doi.org/10.1016/j.nmd.2008.05.007
dc.identifier.issn09608966
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/26721
dc.description.abstractWe describe two Chinese families with a mild form of the myotonia congenita due to novel chloride channel (ClCN1) mutations. In one case, heterozygous I553F and H555N mutations were found. The patient shared the I553F mutation with his healthy father, and his mother had a history of mild myotonia when she was younger. In another family, autosomal dominant myotonia congenita was due to a L844F change. The physiological effects of the mutations were examined by using the two-electrode voltage-clamp technique after expression of the channels in Xenopus oocytes. All mutations drastically shifted the voltage required for half-maximal activation, more under conditions mimicking the homozygous situation, than under conditions mimicking the heterozygous situation. The larger effect was seen in the compound heterozygous situation combining the I553F and the H555N mutations. Our data suggest that myotonia congenita caused by CLCN1 mutations in Chinese have similar variable features to those found in the West. © 2008 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.nmd.2008.05.007
dc.sourceScopus
dc.subjectChinese
dc.subjectChloride channel
dc.subjectMutation
dc.subjectMyotonia congenita
dc.subjectPhysiology
dc.typeArticle
dc.contributor.departmentMEDICINE
dc.description.doi10.1016/j.nmd.2008.05.007
dc.description.sourcetitleNeuromuscular Disorders
dc.description.volume18
dc.description.issue8
dc.description.page633-640
dc.identifier.isiut000259594000006
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