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Albert-Ludwigs-Universität Freiburg Friedrichstraße 39 79085 Freiburg, Germany http://www.uni-freiburg.de
Contact Ms Prof. Dr. Katja Arndt +49 761 2032748
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Albert-Ludwigs-Universität Freiburg

Es werde Licht: Freiburger Forscher erfinden neue Technologie zur Fernbedienung von Proteinen

Lichtgesteuerte Proteinfragmente können Onkogene ein- und ausschalten - Publikation in "Angewandte Chemie", International Edition

(PresseBox) (Freiburg, )
Das Ablesen von Genen und die damit verknüpfte Herstellung zellulärer Eiweißmoleküle sind wesentlich für das korrekte Funktionieren jeder Zelle. Dieser als Genexpression bezeichnete Prozess wird durch spezielle Eiweißmoleküle, so genannte Transkriptionsfaktoren gesteuert. Ihre Veränderung führt in den meisten Fällen zu einer krankhaften Veränderung wie etwa Krebs. Die Freiburger Forschergruppe von Prof. Dr. Katja Arndt, Institut für Biologie III der Universität Freiburg, hat nun kleine Eiweißfragmente konstruiert, die fehlregulierte Genexpression hemmen können. In Zusammenarbeit mit dem Team von Andrew Woolley, Professor an der University of Toronto, entwickelten die Wissenschaftler einen Mechanismus, mit dem sich diese Inhibitoren "per Lichtschalter" fernsteuern lassen.

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