Phosphate responsive regulation provides insights for ESX-5 function in Mycobacterium tuberculosis.

Phosphate responsive regulation provides insights for ESX-5 function in Mycobacterium tuberculosis.
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DOI:
10.1007/s00294-016-0604-4
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发表时间:
2016-11
期刊:
影响因子:
2.5
通讯作者:
Tischler, Anna D.
Tischler, Anna D.
中科院分区:
生物学3区
文献类型:
--
作者:
Elliott, Sarah R.;Tischler, Anna D.

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Pathogenic microbes commonly respond to environmental cues in the host by activating specialized protein secretion systems. Mycobacterium tuberculosis uses the specialized Type VII ESX protein secretion systems to transport a subset of effector proteins. The ESX-5 secretion system is involved in virulence, but both the mechanism of regulation and activating signal were unknown. Our work, reviewed here, has established that the phosphate sensing Pst/SenX3-RegX3 system directly activates ESX-5 secretion in response to phosphate limitation, a relevant environmental signal likely encountered by M. tuberculosis in the host. This review focuses on how elucidation of the ESX-5 regulatory network provides insight into its biological roles, which may include both phosphate acquisition and pathogenesis.
MprAB 调节结核分枝杆菌中的 espA 操纵子并调节 ESX-1 功能和宿主细胞因子反应
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