PXD049022

PXD049022 is an original dataset announced via ProteomeXchange.

Title	The functional small RNA interactome reveals targets for the vancomycin-responsive sRNA RsaOI in vancomycin tolerant Staphylococcus aureu
Description	Vancomycin tolerance in multidrug resistance Staphylococcus aureus is correlated with dysregulation of small RNAs although their contribution to antibiotic tolerance in poorly understood. RNA-RNA interactome profiling techniques are expanding our understanding of sRNA-mRNA interactions in bacteria; however, determining the function of these interactions for hundreds of sRNA-mRNA pairs is a major challenge. At steady-state, protein and mRNA abundances are often highly correlated and lower than expected protein abundance may indicate translational repression of an mRNA. We used label-free quantitative proteomics to examine changes in protein expression in vancomycin tolerant S. aureus strain in response to vancomycin treatment. We correlated the protein levels with gene transcript abundance and ribosome occupancy to identify sRNA-mRNA interactions that regulate mRNA translation. We used the machine learning technique self-organising maps (SOMS) to cluster genes with similar transcription and translation patterns and identified a cluster of mRNAs that appeared to be post-transcriptionally repressed. By integrating our clustering analysis with the sRNA-mRNA interactome data generated in vancomycin tolerant S. aureus by RNase III-CLASH, we identified a cluster of sRNAs that may be mediating translational repression. We have confirmed sRNA-dependant post-transcriptional repression of several mRNAs in this cluster. Two of these interactions are mediated by RsaOI, a sRNA that is highly upregulated by vancomycin, and these targets include HPr and the cell-wall autolysin Atl, with only Atl downregulated at the protein level upon vancomycin treatment. These findings suggest RsaOI coordinates carbon metabolism and cell wall turnover during vancomycin treatment
HostingRepository	PRIDE
AnnounceDate	2024-03-18
AnnouncementXML	Submission_2024-03-17_22:03:27.951.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Winton Wu
SpeciesList	scientific name: Staphylococcus aureus; NCBI TaxID: 1280;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Fusion Lumos

Revision	Datetime	Status	ChangeLog Entry
0	2024-01-30 18:41:36	ID requested
⏵ 1	2024-03-17 22:03:28	announced

Dataset with its publication pending

submitter keyword: staphylococcus aureus, vancomycin tolerance

Jai Justin Tree
contact affiliation	School of Biotechnology and Biomolecular Sciences, University of New South Wales
contact email	j.tree@unsw.edu.au
lab head
Winton Wu
contact affiliation	University of New South Wales
contact email	winton.wu@unsw.edu.au
dataset submitter

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PRIDE project URI

• PRIDE
  1. PXD049022
     1. Label: PRIDE project
     2. Name: The functional small RNA interactome reveals targets for the vancomycin-responsive sRNA RsaOI in vancomycin tolerant Staphylococcus aureu