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Forschungsverbund Berlin e.V. Rudower Chaussee 17 12489 Berlin, Germany http://ww.fv-berlin.de
Contact Mr Prof. Dr. Adam Lange +49 30 94793190
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Forschungsverbund Berlin e.V.

Eine Frage der Dynamik

(PresseBox) (Berlin, )
Die meisten Ionenkanäle lassen nur eine ganz bestimmte Sorte von Ionen passieren, zum Beispiel Natrium- oder Kaliumionen. Daneben gibt es jedoch eine Reihe von Kanälen, die für beide Ionensorten durchlässig sind. Wie den Eiweißmolekülen das gelingt, hat jetzt ein Team des Berliner Leibniz-Forschungsinstituts für Molekulare Pharmakologie (FMP) um die Wissenschaftlerin Han Sun und die Arbeitsgruppe von Adam Lange herausgefunden. Solche nicht-selektiven Kanäle besäßen anders als die selektiven eine dynamische Struktur ihres Selektivitätsfilters, berichten die FMP-Forscher im Fachblatt Nature Communications. Dieser Filter könne zwei unterschiedliche Formen ausbilden, die jeweils nur eine der beiden Ionensorten passieren lassen.

Ionenkanäle sind für den Organismus
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