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Proceedings of the National Academy of Sciences of the United States of America, 2021 The type VI secretion system (T6SS) is a powerful tool deployed by Gram-negative bacteria to antagonize neighboring organisms. Here, we report that Acinetobacter baumannii ATCC 17978 (Ab17978) secretes D-lysine (D-Lys), increasing the extracellular pH ...
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T6SS Mediated Stress Responses for Bacterial Environmental Survival and Host Adaptation [PDF]
International Journal of Molecular Sciences, 2021 The bacterial type VI secretion system (T6SS) is a protein secretion apparatus widely distributed in Gram-negative bacterial species. Many bacterial pathogens employ T6SS to compete with the host and to coordinate the invasion process. The T6SS apparatus consists of a membrane complex and an inner tail tube-like structure that is surrounded by a ...
Kai-Wei Yu, Liang Yang, Yang Fu
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Cell Host & Microbe
How do gut bacteria outcompete rivals in dense microbial ecosystems? In this issue of Cell Host & Microbe, Li et al.1 report a Bacteroides T6SS adaptor protein C-orchestrated co-secretion mechanism of T6SS effectors Bacteroides T6SS phosphatase effector A and Bacteroides T6SS amidase effector B in gut Bacteroidota, thereby revealing a conserved ...
Lingfang, Zhu, Xihui, Shen
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How do gut bacteria outcompete rivals in dense microbial ecosystems? In this issue of Cell Host & Microbe, Li et al.1 report a Bacteroides T6SS adaptor protein C-orchestrated co-secretion mechanism of T6SS effectors Bacteroides T6SS phosphatase effector A and Bacteroides T6SS amidase effector B in gut Bacteroidota, thereby revealing a conserved ...
Lingfang, Zhu, Xihui, Shen
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A new class of polymorphic T6SS effectors and tethers
2022Abstract Bacteria use the type VI secretion system (T6SS) to deliver toxic effectors into bacterial or eukaryotic cells during interbacterial competition, host colonization, or when resisting predation. The identity of many effectors remains unknown.
Katarzyna Kanarek +3 more
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T6SS intraspecific competition orchestrates Vibrio cholerae genotypic diversity.
International microbiology : the official journal of the Spanish Society for Microbiology, 2017Vibrio cholerae is a diverse species that inhabits a wide range of environments from copepods in brackish water to the intestines of humans. In order to remain competitive, V. cholerae uses the versatile type-VI secretion system (T6SS) to secrete anti-prokaryotic and anti-eukaryotic effectors.
Kostiuk, Benjamin +3 more
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Refined egoist: The toxin–antitoxin immune system of T6SS
Microbial PathogenesisThe Type VI secretory system (T6SS) is a key regulatory network in the bacterial system, which plays an important role in host-pathogen interactions and maintains cell homeostasis by regulating the release of effector proteins in specific competition.
Ziduo, Chen +7 more
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Klebsiella pneumoniae T6SS impact in IBDs
Journal of Crohn's and ColitisAbstract Background and aims Our hypothesis is that Klebsiella pneumoniae (Kp) Type VI Secretion System (T6SS), normally used for bacteria competition during host colonization have a collateral impact on the host inflammatory pathway (Fig1).
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Balanced role of T3SS and T6SS in contribution to the full virulence of Edwardsiella piscicida
Fish & Shellfish Immunology, 2019Edwardsiella piscicida is an important pathogen that infects a wide range of hosts, from fish to human. Its infection leads to extensive losses in a diverse array of commercially important fish, like Japanese flounder, turbot, and tilapia. During the infection, type III secretion system (T3SS) and type VI secretion system (T6SS) of E.
Tianjian Hu +7 more
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