Manting, E. H. and van Der Does, C. and Remigy, H. and Engel, A. and Driessen, A. J.. (2000) SecYEG assembles into a tetramer to form the active protein translocation channel. The EMBO journal, Vol. 19, H. 5. pp. 852-861.
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Official URL: http://edoc.unibas.ch/dok/A5262371
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Abstract
Translocase mediates preprotein translocation across the Escherichia coli inner membrane. It consists of the SecYEG integral membrane protein complex and the peripheral ATPase SecA. Here we show by functional assays, negative-stain electron microscopy and mass measurements with the scanning transmission microscope that SecA recruits SecYEG complexes to form the active translocation channel. The active assembly of SecYEG has a side length of 10.5 nm and exhibits an approximately 5 nm central cavity. The mass and structure of this SecYEG as well as the subunit stoichiometry of SecA and SecY in a soluble translocase-precursor complex reveal that translocase consists of the SecA homodimer and four SecYEG complexes.
Faculties and Departments: | 05 Faculty of Science > Departement Biozentrum > Former Organization Units Biozentrum > Structural Biology (Engel) |
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UniBasel Contributors: | Engel, Andreas H |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | Nature Publishing Group |
ISSN: | 0261-4189 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Last Modified: | 22 Mar 2012 14:21 |
Deposited On: | 22 Mar 2012 13:23 |
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