PXD040986
PXD040986 is an original dataset announced via ProteomeXchange.
Dataset Summary
Title | Quantitative exoproteomic analysis reveals a virulence-regulating mechanism by an AraC-like protein in Aeromonas hydrophila |
Description | Bacterial AraC is a transcription factor family that initiates transcription by recruiting RNA polymerase to the promoter. It also directly regulates various bacterial phenotypes. However, how this transcription factor regulates bacterial virulence and affects host immunity is still largely unknown. In this study, deleting the orf02889 (AraC-like transcription factor) gene in virulent Aeromonas hydrophila LP-2 affected several important phenotypes, such as increasing biofilm formation and siderophore production abilities. Moreover, Δorf02889 also significantly decreased the virulence of A. hydrophila and has promising attenuated vaccine potential. To better understand the effects of orf02889 on biological functions, a DIA-based quantitative proteomics method was performed to compare the differentially expressed proteins between Δorf02889 and the wild-type strain in extracellular fractions. The following bioinformatics analysis suggested that ORF02889 may regulate various metabolic pathways, such as quorum sensing and ABC transporter metabolism. Moreover, ten selected genes from the top 10 decreasing abundances in proteomics data were deleted, and their virulence to zebrafish was evaluated, respectively. The results showed that ΔcorC, Δorf00906, and Δorf04042 significantly reduced bacterial virulence. Finally, the following ChIP-PCR assay validated that the promoter of corC was directly regulated by ORF02889. Overall, these results provide insight into the biological function of ORF02889 and demonstrate its inherent regulatory mechanism for the virulence of A. hydrophila. |
HostingRepository | iProX |
AnnounceDate | 2023-03-21 |
AnnouncementXML | Submission_2023-05-29_19:57:29.131.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Lishan Zhang |
SpeciesList | scientific name: Aeromonas hydrophila subsp. hydrophila ATCC 7966; NCBI TaxID: 380703; |
ModificationList | (13)C labeled residue |
Instrument | LTQ |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
---|---|---|---|
0 | 2023-03-20 19:17:27 | ID requested | |
1 | 2023-03-20 19:17:56 | announced | |
⏵ 2 | 2023-05-29 19:57:30 | announced | 2023-05-30: Update publication information. |
Publication List
Zhang L, Sun L, Srinivasan R, Lin M, Gong L, Lin X, Unveiling a Virulence-Regulating Mechanism in Aeromonas hydrophila: a Quantitative Exoproteomic Analysis of an AraC-Like Protein. Front Immunol, 14():1191209(2023) [pubmed] |
Keyword List
submitter keyword: AraC-like transcription factor, quantitative proteomics, Aeromonas hydrophila, virulence, ORF02889 |
Contact List
Xiangmin Lin | |
---|---|
contact affiliation | Fujian Agriculture and Forestry University |
contact email | xiangmin@fafu.edu.cn |
lab head | |
Lishan Zhang | |
contact affiliation | Fujian Agriculture and Forestry University |
contact email | 1215847994@qq.com |
dataset submitter |
Full Dataset Link List
iProX dataset URI |