An In Vitro Assay for Substrate Translocation by FhaC in Liposomes.
An In Vitro Assay for Substrate Translocation by FhaC in Liposomes.
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脂质体中 FhaC 底物易位的体外测定
DOI:
10.1007/978-1-4939-2871-2_8
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发表时间:
2015
影响因子:
--
通讯作者:
Matthias Müller
中科院分区:
文献类型:
--
作者:
Enguo Fan;Derrick Norell;Matthias Müller
The two-partner secretion (TPS) pathway is used by gram-negative bacteria to secrete a large family of virulence exoproteins. Its name is derived from the fact that it involves two proteins, a secreted TpsA protein and a cognate TpsB transporter in the outer membrane. A typical TPS system is represented by the filamentous hemagglutinin FhaB (TpsA protein) and its transporter FhaC (TpsB protein) ofBordetella pertussis. Results from mutational analysis and heterologous expression experiments suggested that FhaC is essential for FhaB translocation across the outer membrane of bacteria. We have devised a cell-free biochemical assay to reconstitute in vitro the translocation of FhaB into reconstituted membrane vesicles. Thereby the clearest evidence has been provided that the single β-barrel FhaC protein serves as the sole translocator to transport FhaB across the outer membrane. This is the first in vitro assay for protein secretion across theEscherichia coliouter membrane and the detailed protocol described here should be amenable to modifications and application to the analysis of related protein transport events occurring at the outer membranes of gram-negative bacteria.
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影响因子:
4.8
作者:
Fan, Enguo;Fiedler, Silke;Mueller, Matthias
通讯作者:
Mueller, Matthias
影响因子:
3.7
作者:
E. Schleiff;U. Maier;T. Becker
通讯作者:
T. Becker
影响因子:
3.4
作者:
Ricci, Dante P.;Silhavy, Thomas J.
通讯作者:
Silhavy, Thomas J.
影响因子:
2.6
作者:
Kudva, Renuka;Denks, Kaert;Koch, Hans-Georg
通讯作者:
Koch, Hans-Georg