PXD012964 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Measuring glycolytic flux in single yeast cells with an orthogonal synthetic biosensor |
Description | Metabolic heterogeneity modulates productivity, antibiotic resistance and cancer aggressiveness. Since metabolic fluxes represent the functional output of metabolism, with glycolytic flux correlating with highly-productive phenotypes and cancer, such flux map will be indicative of the cellular metabolic state. Therefore, the quantification of metabolic fluxes is vital to identify the existence of metabolic subpopulations and to understand the process of their emergence at the single-cell level. However, so far inference of metabolic fluxes in individual cells is not possible as no method is available. Here, we developed a biosensor for glycolytic flux measurements in single yeast cells drawing on the robust correlation between fructose-1,6-bisphosphate (FBP) and flux levels in yeast, and using the B. subtilis FBP-binding transcription factor CggR. We followed a systematic engineering approach starting from promoter design, computational protein design and protein engineering, accompanied by strict characterization of the biosensor using different biochemical methods, proteomics, metabolomics and physiological analyses. As proof of principle, we applied the biosensor in vivo in the search for metabolic subpopulations in yeast cultures and, using fluorescence microscopy, we demonstrated that quiescent yeast cells have low glycolytic fluxes in comparison to coexisting dividing cells. We anticipate that our biosensor will contribute with unprecedented resolution for the study of metabolic subpopulations, to understand how and why metabolic subpopulations emerge and, very importantly, give clues on how to counteract the undesirable effects of such. |
HostingRepository | PRIDE |
AnnounceDate | 2019-12-17 |
AnnouncementXML | Submission_2020-01-15_05:41:15.xml |
DigitalObjectIdentifier | https://dx.doi.org/10.6019/PXD012964 |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Supported dataset by repository |
PrimarySubmitter | Alexander Schmidt |
SpeciesList | scientific name: Saccharomyces cerevisiae (Baker's yeast); NCBI TaxID: 4932; |
ModificationList | Oxidation; Acetyl; Carbamidomethyl |
Instrument | LTQ Orbitrap Elite |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2019-03-05 03:22:32 | ID requested | |
1 | 2019-12-17 08:26:22 | announced | |
⏵ 2 | 2020-01-15 05:41:17 | announced | 2020-01-15: Updated publication reference for PubMed record(s): 31885198. |
Publication List
Monteiro F, Hubmann G, Takhaveev V, Vedelaar SR, Norder J, Hekelaar J, Saldida J, Litsios A, Wijma HJ, Schmidt A, Heinemann M, Measuring glycolytic flux in single yeast cells with an orthogonal synthetic biosensor. Mol Syst Biol, 15(12):e9071(2019) [pubmed] |
Keyword List
curator keyword: Biological |
submitter keyword: Yeast, mCherry, CggR |
Contact List
Alexander Schmidt |
contact affiliation | Biozentrum, University of Basel, 4056 Basel, Switzerland |
contact email | alex.schmidt@unibas.ch |
lab head | |
Alexander Schmidt |
contact affiliation | Proteomics Core Facility |
contact email | alex.schmidt@unibas.ch |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD012964
- Label: PRIDE project
- Name: Measuring glycolytic flux in single yeast cells with an orthogonal synthetic biosensor