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PXD040518

PXD040518 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleA ParDE toxin-antitoxin system is responsible for maintenance of the Yersinia virulence plasmid, but not for type III secretion-associated growth inhibition
DescriptionMany Gram-negative pathogens utilize the type III secretion system (T3SS) to translocate virulence-promoting effector proteins into eukaryotic host cells. Activity of this system results in severe reduction of bacterial growth and division, summarized as secretion-associated growth inhibition (SAGI). In Y. enterocolitica, the T3SS and related proteins are encoded on a virulence plasmid. We identified a ParDE-like toxin-antitoxin system on this virulence plasmid in genetic proximity to yopE, encoding a T3SS effector. Effectors are strongly upregulated upon activation of the T3SS, indicating a potential role of the ParDE system in the SAGI or maintenance of the virulence plasmid. Expression of the toxin ParE in trans resulted in reduced growth and elongated bacteria, highly reminiscent of the SAGI. Nevertheless, activity of ParDE is not causal for the SAGI. T3SS activation did not influence ParDE activity; conversely, ParDE had no impact on T3SS assembly or activity itself. However, we found that ParDE ensures presence of the T3SS across bacterial populations by reducing loss of the virulence plasmid, especially under conditions relevant for infection. Despite this effect, a subset of bacteria lost the virulence plasmid and regained the ability to divide under secreting conditions, facilitating the possible emergence of T3SS-negative bacteria in late acute and persistent infections.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_05:47:29.814.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterTimo Glatter
SpeciesList scientific name: Yersinia enterocolitica subsp. enterocolitica NBRC 105693; NCBI TaxID: 1218100;
ModificationListNo PTMs are included in the dataset
InstrumentOrbitrap Exploris 480
Dataset History
RevisionDatetimeStatusChangeLog Entry
02023-03-01 01:54:56ID requested
12023-06-09 02:17:57announced
22023-11-14 09:00:40announced2023-11-14: Updated project metadata.
32024-10-22 05:47:30announced2024-10-22: Updated project metadata.
Publication List
10.3389/fcimb.2023.1166077;
Schott S, Scheuer R, Ermoli F, Glatter T, Evguenieva-Hackenberg E, Diepold A, virulence plasmid but not for type III secretion-associated growth inhibition. Front Cell Infect Microbiol, 13():1166077(2023) [pubmed]
Keyword List
submitter keyword: Yersinia enterocolitica, T3SS
Contact List
Timo Glatter
contact affiliationMax Planck Insitut for Terrestrial Microbiology Karl-von-Frisch Str. 10 35043 Marburg Germany
contact emailtimo.glatter@mpi-marburg.mpg.de
lab head
Timo Glatter
contact affiliationMPI Marburg
contact emailglatter@mpi-marburg.mpg.de
dataset submitter
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