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Assembly and Post-assembly Turnover and Dynamics in the Type III Secretion System.
1Department of Ecophysiology, Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany. andreas.diepold@mpi-marburg.mpg.de.
Current Topics in Microbiology and Immunology
|June 21, 2019
Summary
The bacterial type III secretion system (T3SS) assembly is a dynamic process, not fixed. Components can rearrange even after the nanomachine is built, revealing complex post-assembly dynamics.
Area of Science:
- Microbiology
- Molecular Biology
- Bacterial Pathogenesis
Background:
- The type III secretion system (T3SS) is a large, complex transmembrane nanomachine essential for bacterial virulence.
- Its assembly is a hierarchical process influenced by various regulatory signals.
Purpose of the Study:
- To provide an overview of the assembly and post-assembly dynamics of the T3SS.
- To highlight emerging concepts and adaptations in T3SS assembly pathways.
Main Methods:
- Literature review and synthesis of recent findings on T3SS assembly.
- Analysis of experimental data illustrating T3SS component dynamics.
Main Results:
- T3SS assembly is not strictly unidirectional; components can exchange and rearrange.
- Post-assembly dynamics play a crucial role in T3SS function and regulation.
Conclusions:
- The T3SS exhibits significant plasticity, with ongoing molecular rearrangements after initial assembly.
- Understanding these dynamic processes is key to deciphering T3SS function and developing novel therapeutic strategies.
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