The substrate specificity switch FlhB assembles onto the export gate to regulate type three secretion

oleh: Lucas Kuhlen, Steven Johnson, Andreas Zeitler, Sandra Bäurle, Justin C. Deme, Joseph J.  E. Caesar, Rebecca Debo, Joseph Fisher, Samuel Wagner, Susan M. Lea

Format: Article
Diterbitkan: Nature Portfolio 2020-03-01

Deskripsi

Export of proteins by type three secretion systems occurs through an export gate that is localized in the periplasm. Here, the authors present the cryo-EM structure of the Vibrio mimicus export gate complex with FlhB, which plays a major role in switching of the specificity of secretion substrates and propose a mechanism for export gate opening.