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Remote Coupled Drastic β-Barrel to β-Sheet Transition of the Protein Translocation MotorRemote Coupled Drastic β-Barrel to β-Sheet Transition of the Protein Translocation Motor |
"/Arata, Furukawa/"Arata, Furukawa ,
"/Nakayama, Shintaro/"Nakayama, Shintaro ,
"/Yoshikaie, Kunihito/"Yoshikaie, Kunihito ,
"/Tanaka, Yoshiki/"Tanaka, Yoshiki ,
"/Tsukazaki, Tomoya/"Tsukazaki, Tomoya
2018-02-01 , Elsevier
ISSN:0969-2126
内容記述
Summary
The membrane protein SecDF, belonging to the RND superfamily, enhances protein translocation at the extracytoplasmic side using a proton gradient. Here, we report the crystal structure of SecDF in a form we named Super-membrane-facing (Super F) form, demonstrating a β-barrel architecture instead of the previously reported β-sheet structure. Through this structural insight and supporting results of an in vivo crosslinking experiment, we propose a remote coupling model in which a structural change of the transmembrane region drives a functional, extracytoplasmic conformational transition.
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https://www.sciencedirect.com/science/article/pii/S0969212618300029?via%3Dihub
http://library.naist.jp/dspace/xmlui/bitstream/10061/12212/1/CELL-REPORTS-D-17-00443_R2.pdf