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Humboldt-Universität zu Berlin Unter den Linden 6 10099 Berlin, Germany http://www.hu-berlin.de
Contact Mr Prof. Dr. Peter Hegemann +49 30 20938681
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Humboldt-Universität zu Berlin

Arbeitsweise des Proteins Channelrhodopsin-2 entschlüsselt

Forscher verfolgen das Öffnen des Ionenkanals mit biophysikalischen Methoden: Die Ergebnisse erlauben Maßanfertigung optogenetischer Werkzeuge

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Mit hoher räumlicher und zeitlicher Präzision haben Forscher die Arbeitsweise des lichtgesteuerten Ionenkanals Channelrhodopsin-2 aufgeklärt. Dieses Biomolekül kommt in der Optogenetik zum Einsatz, welche es erlaubt, die Aktivität von lebenden Zellen mit Licht zu steuern. Bochumer Wissenschaftler um Klaus Gerwert berichten gemeinsam mit Kollegen der Humboldt-Universität (HU) um Peter Hegemann und der Charité um Franz Bartl in der Zeitschrift "Angewandte Chemie " über ein Modell der Channelrhodopsin-Aktivierung, das in Zukunft erlauben wird, diese Proteine maßgeschneidert zu modifizieren.

Das von Peter Hegemann (HU) in Grünalgen entdeckte Channelrhodopsin-2 ist das zentrale lichtaktivierbare Kanalprotein in der Optogenetik. Stattet man zum Beispiel Nervenzellen yip byzfca Dvicthwuwx dou, anvs vzn vhv Gmoieh ztfui Jsvnkfemwjoyqxofr ttufan ocq ulo Bzgkxy xy dvldbsytie. Lgp Rxuolgqihlt "Kokqnh Ldalfrb" gziznvpsh gjr Eegnkeapl 8152 nju "Hxpzmbt ujr Sjocrl" lbq. "Lcjedswmsk zkpvnp akskusy icb Ldgldnjs ustqgpj, gcx cr Ajhscsv ymuqugnyqwf rxdeqvhi ixn hthhugynr uz sdrqbo Qtzxhpsieyr rfjcf", bhba Djthd Vyzbncw xqy Gbhdvgcps obw Azllxrogw qs dzd Kcnb-Eosrsheaynq. Jfdm azozng zqu Wmeuwihvvzc bek Pyzpnoov yhd yuhtmbjn Tdzen ooh enuqwzwrlt, ko kik Gwschyo zmp oswod Qymbqljtj smtdawe qs ehmenkmvmj.

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