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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Bacterial secretins: Mechanisms of assembly and membrane targeting

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de Oliveira Silva, Yuri Rafael [1, 2] ; Contreras-Martel, Carlos [3] ; Macheboeuf, Pauline [3] ; Dessen, Andrea [2, 3]
Total Authors: 4
[1] Univ Estadual Campinas, Inst Biol, Dept Genet Evolucao Microbiol & Imunol, UNICAMP, Campinas, SP - Brazil
[2] Brazilian Biosci Natl Lab LNBio, CNPEM, Campinas, SP - Brazil
[3] Univ Grenoble Alpes, IBS, CEA, CNRS, Grenoble - France
Total Affiliations: 3
Document type: Review article
Source: Protein Science; v. 29, n. 4 FEB 2020.
Web of Science Citations: 0

Secretion systems are employed by bacteria to transport macromolecules across membranes without compromising their integrities. Processes including virulence, colonization, and motility are highly dependent on the secretion of effector molecules toward the immediate cellular environment, and in some cases, into the host cytoplasm. In Type II and Type III secretion systems, as well as in Type IV pili, homomultimeric complexes known as secretins form large pores in the outer bacterial membrane, and the localization and assembly of such 1 MDa molecules often relies on pilotins or accessory proteins. Significant progress has been made toward understanding details of interactions between secretins and their partner proteins using approaches ranging from bacterial genetics to cryo electron microscopy. This review provides an overview of the mode of action of pilotins and accessory proteins for T2SS, T3SS, and T4PS secretins, highlighting recent near-atomic resolution cryo-EM secretin complex structures and underlining the importance of these interactions for secretin functionality. (AU)

FAPESP's process: 17/12436-9 - ANTIBIO-BAC: exploring the bacterial cell wall as a target for novel antibiotherapies
Grantee:Andrea Dessen de Souza e Silva
Support type: Research Projects - SPEC Program
FAPESP's process: 18/04344-0 - Structural characterization of type II secretion system (T2SS) effectors of Acinetobacter baumannii
Grantee:Yuri Rafael de Oliveira Silva
Support type: Scholarships in Brazil - Doctorate (Direct)