ArticleMetallomics : integrated biometal science2018
The cellular economy of the Saccharomyces cerevisiae zinc proteome.
Article in Metallomics : integrated biometal science, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.
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Who cites it
58 citing papers in PubMed, 96 citations in OpenAlex.
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- Modification of human metallothioneins by garlic organosulfur compounds, allicin and ajoene: direct effect on zinc homeostasis with relevance to immune regulation.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025Article
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- The interactome of the Bakers' yeast peroxiredoxin Tsa1 implicates it in redox regulation of intermediary metabolism, glycolysis, and zinc homeostasis.Metallomics : integrated biometal science · 2025Article
- The Elements of Life, Photosynthesis and Genomics.Journal of molecular biology · 2025Review
- Direct binding of arsenicals to nuclear transport factors disrupts nucleocytoplasmic transport.bioRxiv : the preprint server for biology · 2025Article
- Histone H3 cysteine 110 enhances iron metabolism and modulates replicative life span inScience advances · 2025Article
- Origin of the RNA World in Cold Hadean Geothermal Fields Enriched in Zinc and Potassium: Abiogenesis as a Positive Fallout from the Moon-Forming Impact?Life (Basel, Switzerland) · 2025Article
- Metals in Motion: Understanding Labile Metal Pools in Bacteria.Biochemistry · 2025Review
- Bacterial Metallostasis: Metal Sensing, Metalloproteome Remodeling, and Metal Trafficking.Chemical reviews · 2024Review
- Ageing-dependent thiol oxidation reveals early oxidation of proteins with core proteostasis functions.Life science alliance · 2024Article
- Zinc Starvation Induces Cell Wall Remodeling and Activates the Antioxidant Defense System inJournal of fungi (Basel, Switzerland) · 2024Article
- QTL mapping reveals novel genes and mechanisms underlying variations in H2S production during alcoholic fermentation in Saccharomyces cerevisiae.FEMS yeast research · 2024Article
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Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
Zinc is an essential cofactor for many proteins. A key mechanism of zinc homeostasis during deficiency is "zinc sparing" in which specific zinc-binding proteins are repressed to reduce the cellular requirement. In this report, we evaluated zinc sparing across the zinc proteome of Saccharomyces cerevisiae. The yeast zinc proteome of 582 known or potential zinc-binding proteins was identified using a bioinformatics analysis that combined global domain searches with local motif searches. Protein abundance was determined by mass spectrometry. In zinc-replete cells, we detected over 2500 proteins among which 229 were zinc proteins. Based on copy number estimates and binding stoichiometries, a replete cell contains ∼9 million zinc-binding sites on proteins. During zinc deficiency, many zinc proteins decreased in abundance and the zinc-binding requirement decreased to ∼5 million zinc atoms per cell. Many of these effects were due at least in part to changes in mRNA levels rather than simply protein degradation. Measurements of cellular zinc content showed that the level of zinc atoms per cell dropped from over 20 million in replete cells to only 1.7 million in deficient cells. These results confirmed the ability of replete cells to store excess zinc and suggested that the majority of zinc-binding sites on proteins in deficient cells are either unmetalated or mismetalated. Our analysis of two abundant zinc proteins, Fba1 aldolase and Met6 methionine synthetase, supported that hypothesis. Thus, we have discovered widespread zinc sparing mechanisms and obtained evidence of a high accumulation of zinc proteins that lack their cofactor during deficiency.
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