PXD043793-1
PXD043793 is an original dataset announced via ProteomeXchange.
Dataset Summary
| Title | Outer membrane vesicles and the outer membrane protein OmpU govern Vibrio cholerae biofilm matrix assembly |
| Description | Biofilms are matrix-encased microbial communities that increase the environmental fitness and infectivity of many human pathogens including Vibrio cholerae. Biofilm matrix assembly is essential for biofilm formation and function. Known components of the V. cholerae biofilm matrix are the polysaccharide VPS, matrix proteins RbmA, RbmC, Bap1, and extracellular DNA, but the majority of the protein composition is uncharacterized. This study comprehensively analyzed the biofilm matrix proteome and revealed the presence of outer membrane proteins (OMPs). Outer membrane vesicles (OMVs) were also present in the V. cholerae biofilm matrix and were associated with OMPs and many biofilm matrix proteins suggesting that they participate in biofilm matrix assembly. Consistent with this, OMVs had the capability to alter biofilm structural properties depending on their composition. OmpU was the most prevalent OMP in the matrix, and its absence altered biofilm architecture by increasing VPS production. Using single-cell force spectroscopy, we further showed that OmpU, the matrix proteins RbmA, RbmC, and Bap1, and VPS contribute to cell-surface adhesion forces, which are critical for biofilm formation. Our findings provide new insights into the molecular mechanisms underlying biofilm matrix assembly in V. cholerae, which may open up new opportunities to develop inhibitors that specifically alter biofilm matrix properties and, thus, affect either the environmental survival or pathogenesis of Vibrio cholerae. |
| HostingRepository | MassIVE |
| AnnounceDate | 2023-11-01 |
| AnnouncementXML | Submission_2023-11-01_11:12:00.685.xml |
| DigitalObjectIdentifier | |
| ReviewLevel | Non peer-reviewed dataset |
| DatasetOrigin | Original dataset |
| RepositorySupport | Unsupported dataset by repository |
| PrimarySubmitter | Brett Phinney |
| SpeciesList | scientific name: Vibrio cholerae; NCBI TaxID: 666; |
| ModificationList | Oxidation; Carbamidomethyl |
| Instrument | timsTOF Pro 2 |
Dataset History
| Revision | Datetime | Status | ChangeLog Entry |
|---|---|---|---|
| 0 | 2023-07-14 12:08:08 | ID requested | |
| ⏵ 1 | 2023-11-01 11:12:01 | announced |
Publication List
| no publication |
Keyword List
| submitter keyword: Outer membrane vesicles, OmpU , biofilm |
Contact List
| Fitnat H. Yildiz | |
|---|---|
| contact affiliation | 1 Department of Microbiology and Environmental Toxicology, University of California-Santa Cruz, Santa Cruz |
| contact email | fyildiz@ucsc.edu |
| lab head | |
| Brett Phinney | |
| contact affiliation | UC Davis |
| contact email | brettsp@ucdavis.edu |
| dataset submitter | |
Full Dataset Link List
| MassIVE dataset URI |
| Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://massive.ucsd.edu/MSV000092446/ |
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