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  An amino acid exchange in the second transmembrane segment of a neuronal nicotinic receptor causes partial epilepsy by altering its desensitization kinetics

Weiland, S., Witzemann, V., Villarroel, A., Propping, P., & Steinlein, O. (1996). An amino acid exchange in the second transmembrane segment of a neuronal nicotinic receptor causes partial epilepsy by altering its desensitization kinetics. FEBS Letters, 398, 91-96.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-4DCA-6 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-4DCB-4
Genre: Zeitschriftenartikel
Alternativer Titel : An amino acid exchange in the second transmembrane segment of a neuronal nicotinic receptor causes partial epilepsy by altering its desensitization kinetics

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FEBSLett_398_1996_91.pdf (beliebiger Volltext), 616KB
 
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 Urheber:
Weiland, S., Autor
Witzemann, Veit1, 2, Autor           
Villarroel, Alfredo2, Autor           
Propping, P., Autor
Steinlein, O., Autor
Affiliations:
1Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society, ou_1497704              
2Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society, ou_1497701              

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Schlagwörter: Acetylcholine receptor; Ion channel; E ectrophysiology; Complementary DNA; Xenopus laevis; P trtial epilepsy
 Zusammenfassung: The alpha4 subunit of the neuronal nicotinic acetylcholine receptor is the first gene shown to be involved in a human idiopathic epileptic disease. A missense mutation, leading to the replacement of serine 248 by phenylalanine in the second transmembrane segment, had been detected in patients with autosomal dominant nocturnal frontal lobe epilepsy. The properties of the wild type receptor composed of alpha4 and beta2 subunits and the mutant receptor where alpha4 subunits carried the mutation at serine 248 were compared by means of cDNA manipulation and expression in Xenopus oocytes. The mutant receptor exhibited faster desensitization upon activation by acetylcholine and recovery from the desensitized state was much slower than in the wild type receptor. We conclude that the reported mutation causes seizures via a diminution of the activity of the alpha4beta2 neuronal nicotinic acetylcholine receptor.

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Sprache(n): eng - English
 Datum: 1996-10-031996-11-25
 Publikationsstatus: Erschienen
 Seiten: 6
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 666446
Anderer: 4585
 Art des Abschluß: -

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Titel: FEBS Letters
  Andere : FEBS Lett.
Genre der Quelle: Zeitschrift
 Urheber:
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Ort, Verlag, Ausgabe: Amsterdam : Elsevier
Seiten: - Band / Heft: 398 Artikelnummer: - Start- / Endseite: 91 - 96 Identifikator: ISSN: 0014-5793
CoNE: https://pure.mpg.de/cone/journals/resource/954925399501