Abstract
Genome-scale metabolic models (GEMs) can facilitate metabolism-focused multi-omics integrative analysis. Since Yeast8, the yeast-GEM of Saccharomyces cerevisiae, published in 2019, has been continuously updated by the community. This has increased the quality and scope of the model, culminating now in Yeast9. To evaluate its predictive performance, we generated 163 condition-specific GEMs constrained by single-cell transcriptomics from osmotic pressure or reference conditions. Comparative flux analysis showed that yeast adapting to high osmotic pressure benefits from upregulating fluxes through central carbon metabolism. Furthermore, combining Yeast9 with proteomics revealed metabolic rewiring underlying its preference for nitrogen sources. Lastly, we created strain-specific GEMs (ssGEMs) constrained by transcriptomics for 1229 mutant strains. Well able to predict the strains’ growth rates, fluxomics from those large-scale ssGEMs outperformed transcriptomics in predicting functional categories for all studied genes in machine learning models. Based on those findings we anticipate that Yeast9 will continue to empower systems biology studies of yeast metabolism.
| Original language | English |
|---|---|
| Pages (from-to) | 1134-1150 |
| Number of pages | 17 |
| Journal | Molecular Systems Biology |
| Volume | 20 |
| Issue number | 10 |
| Early online date | 12 Aug 2024 |
| DOIs | |
| Publication status | Published - 3 Oct 2024 |
Bibliographical note
Publisher Copyright:© The Author(s) 2024.
Funding
| Funders | Funder number |
|---|---|
| Knut och Alice Wallenbergs Stiftelse | |
| Deutsche Forschungsgemeinschaft | |
| National Natural Science Foundation of China | |
| Higher Education Discipline Innovation Project | B18022 |
| Higher Education Discipline Innovation Project | |
| Novo Nordisk Fonden | NNF20CC0035580 |
| Novo Nordisk Fonden | |
| Comisión Nacional de Investigación Científica y Tecnológica | 72180373 |
| Comisión Nacional de Investigación Científica y Tecnológica | |
| Horizon 2020 Framework Programme | 686070, 720824 |
| Horizon 2020 Framework Programme | |
| Centro de Modelamiento Matemático, Facultad de Ciencias Físicas y Matemáticas | FB210005, ACE210010 |
| Centro de Modelamiento Matemático, Facultad de Ciencias Físicas y Matemáticas | |
| ANID-Chile | ICN2021 044, 13220002 |
| National Key Research and Development Program of China | 2020YFA0907800 |
| National Key Research and Development Program of China | |
| Shanghai Pujiang Program | 22378263, 22208211 |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek | 184.035.007 |
| Nederlandse Organisatie voor Wetenschappelijk Onderzoek |
Keywords
- Genome-scale Metabolic Models
- Machine Learning
- Multi-omics Integration
- Saccharomyces cerevisiae
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