Bacterial type VI secretion system (T6SS): an evolved molecular weapon with diverse functionality.
Effectors
Microbiome
Plasmid
T6SS
Toxin
Journal
Biotechnology letters
ISSN: 1573-6776
Titre abrégé: Biotechnol Lett
Pays: Netherlands
ID NLM: 8008051
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
received:
28
07
2022
accepted:
05
01
2023
revised:
14
12
2022
pubmed:
23
1
2023
medline:
3
3
2023
entrez:
22
1
2023
Statut:
ppublish
Résumé
Bacterial secretion systems are nanomolecular complexes that release a diverse set of virulence factors/or proteins into its surrounding or translocate to their target host cells. Among these systems, type VI secretion system 'T6SS' is a recently discovered molecular secretion system which is widely distributed in Gram-negative (-ve) bacteria, and shares structural similarity with the puncturing device of bacteriophages. The presence of T6SS is an advantage to many bacteria as it delivers toxins to its neighbour pathogens for competitive survival, and also translocates protein effectors to the host cells, leading to disruption of lipid membranes, cell walls, and cytoskeletons etc. Recent studies have characterized both anti-prokaryotic and anti-eukaryotic effectors, where T6SS is involved in diverse cellular functions including favouring colonization, enhancing the survival, adhesive modifications, internalization, and evasion of the immune system. With the evolution of advanced genomics and proteomics tools, there has been an increase in the number of characterized T6SS effector arsenals and also more clear information about the adaptive significance of this complex system. The functions of T6SS are generally regulated at the transcription, post-transcription and post-translational levels through diverse mechanisms. In the present review, we aimed to provide information about the distribution of T6SS in diverse bacteria, any structural similarity/or dissimilarity, effectors proteins, functional significance, and regulatory mechanisms. We also tried to provide information about the diverse roles played by T6SS in its natural environments and hosts, and further any changes in the microbiome.
Identifiants
pubmed: 36683130
doi: 10.1007/s10529-023-03354-2
pii: 10.1007/s10529-023-03354-2
doi:
Substances chimiques
Type VI Secretion Systems
0
Bacterial Proteins
0
Bacterial Secretion Systems
0
Virulence Factors
0
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
309-331Subventions
Organisme : Ministry of Science and Technology, India
ID : BT/RLF-2020-21
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Nature B.V.
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