PXD019141 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Stress-induced translation inhibition through displacement of scanning initiation factors |
Description | Cellular responses to environmental stress are frequently mediated by RNA-binding proteins (RBPs). Here, we examined global RBP dynamics in Saccharomyces cerevisiae in response to glucose starvation and heat shock. Each stress induced rapid remodeling of the protein:RNA interactome, without corresponding changes in RBP abundance. Consistent with general translation shutdown, ribosomal proteins contacting the mRNA showed decreased RNA-association. Among translation components, RNA-association was most reduced for initiation factors involved in 40S scanning (eIF4A, eIF4B, and Ded1), indicating a common mechanism of translational repression. In unstressed cells, eIF4A, eIF4B, and Ded1 primarily targeted the 5′-ends of mRNAs. Following glucose withdrawal, mRNAs remained stable, but 5’-binding was abolished within 30sec, explaining the rapid translation shutdown. Heat shock induced progressive loss of 5’ RNA-binding by initiation factors over ~16min, and translation shutoff provoked 5′-degradation by Xrn1, selectively for mRNAs encoding translation-related factors. These results reveal mechanisms underlying translational control of gene expression during stress. |
HostingRepository | PRIDE |
AnnounceDate | 2020-10-13 |
AnnouncementXML | Submission_2020-10-13_05:27:05.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Stefan Bresson |
SpeciesList | scientific name: Saccharomyces cerevisiae (Baker's yeast); NCBI TaxID: 4932; |
ModificationList | No PTMs are included in the dataset |
Instrument | Orbitrap Fusion Lumos |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2020-05-12 19:03:52 | ID requested | |
⏵ 1 | 2020-10-13 05:27:05 | announced | |
2 | 2024-10-22 05:13:20 | announced | 2024-10-22: Updated project metadata. |
Publication List
Dataset with its publication pending |
Keyword List
submitter keyword: RNA-binding proteins, environmental stress, heat shock, glucose starvation, mRNA, translation, initiation factors, translational control. |
Contact List
David Tollervey |
contact affiliation | University of Edinburgh |
contact email | d.tollervey@ed.ac.uk |
lab head | |
Stefan Bresson |
contact affiliation | University of Edinburgh |
contact email | stefan.bresson@gmail.com |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD019141
- Label: PRIDE project
- Name: Stress-induced translation inhibition through displacement of scanning initiation factors