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  Ion channels in synaptic vesicles from Torpedo electric organ

Rahamimoff, R., DeRiemer, S. A., Sakmann, B., Stadler, H., & Yakir, N. (1988). Ion channels in synaptic vesicles from Torpedo electric organ. Proceedings of the National Academy of Sciences of the United States of America, 85(14), 5310-5314. Retrieved from http://www.pnas.org/content/85/14/5310.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0000-B99C-0 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0000-B99D-F
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 Urheber:
Rahamimoff, R., Autor
DeRiemer, Susan A., Autor
Sakmann, Bert1, Autor           
Stadler, H., Autor
Yakir, N., Autor
Affiliations:
1Department of Cell Physiology, Max Planck Institute for Medical Research, Max Planck Society, ou_1497701              

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 Zusammenfassung: A simple method has been developed for fusing synaptic vesicles into spherical structures 20-50 micron in diameter. The method has been applied to purified cholinergic synaptic vesicles from Torpedo electric organ, and the membrane properties of these fused structures have been studied by the "cell"-attached version of the patch clamp technique. A large conductance potassium-preferring channel, termed the P channel, was consistently observed in preparations of fused synaptic vesicles. The selectivity of the channel for potassium over sodium was approximately equal to 2.8-fold. Two major conductance levels were observed during P-channel activity, and their relative proportion was dependent on the voltage applied to the membrane through the patch pipette. P channels were not seen in fused preparations of purified Torpedo lipids, nor was the frequency of their occurrence increased in preparations enriched with plasma membrane or nonvesicular membranes. We suggest, therefore, that the P channels are components of the synaptic vesicle membrane. Their function in synaptic transmission physiology is still unknown.

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Sprache(n): eng - English
 Datum: 1988-03-211988
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: URI: http://www.pnas.org/content/85/14/5310
URI: https://www.ncbi.nlm.nih.gov/pubmed/2455900
URI: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC281740/
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Titel: Proceedings of the National Academy of Sciences of the United States of America
  Andere : Proceedings of the National Academy of Sciences of the USA
  Andere : Proc. Acad. Sci. USA
  Andere : Proc. Acad. Sci. U.S.A.
  Kurztitel : PNAS
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington, D.C. : National Academy of Sciences
Seiten: - Band / Heft: 85 (14) Artikelnummer: - Start- / Endseite: 5310 - 5314 Identifikator: ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230