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Chatzitheodoridou, D. ; Bureik, D. ; Padovani, F. ; Nadimpalli, K.V. ; Schmoller, K.M.

Decoupled transcript and protein concentrations ensure histone homeostasis in different nutrients.

EMBO J., DOI: 10.1038/s44318-024-00227-w (2024)
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To maintain protein homeostasis in changing nutrient environments, cells must precisely control the amount of their proteins, despite the accompanying changes in cell growth and biosynthetic capacity. As nutrients are major regulators of cell cycle length and progression, a particular challenge arises for the nutrient-dependent regulation of 'cell cycle genes', which are periodically expressed during the cell cycle. One important example are histones, which are needed at a constant histone-to-DNA stoichiometry. Here we show that budding yeast achieves histone homeostasis in different nutrients through a decoupling of transcript and protein abundance. We find that cells downregulate histone transcripts in poor nutrients to avoid toxic histone overexpression, but produce constant amounts of histone proteins through nutrient-specific regulation of translation efficiency. Our findings suggest that this allows cells to balance the need for rapid histone production under fast growth conditions with the tight regulation required to avoid toxic overexpression in poor nutrients.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Budding Yeast ; Cell Cycle ; Histones ; Nutrients ; Protein Homeostasis; Messenger-rna Decay; Cell-cycle Regulation; Growth-rate Controls; Saccharomyces-cerevisiae; Gene-expression; Coordinate Growth; Dna-replication; Yeast; Identification; Degradation
Language english
Publication Year 2024
HGF-reported in Year 2024
ISSN (print) / ISBN 0261-4189
e-ISSN 1460-2075
Journal EMBO Journal, The
Publisher Wiley
Publishing Place Heidelberg, Germany
Reviewing status Peer reviewed
Institute(s) Institute of Functional Epigenetics (IFE)
POF-Topic(s) 30203 - Molecular Targets and Therapies
Research field(s) Helmholtz Diabetes Center
PSP Element(s) G-554400-001
Grants Helmholtz Association
Human Frontier Science Program
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
Deutsche Forschungsgemeinschaft (DFG)
DOI 10.1038/s44318-024-00227-w
WOS ID 001311970500002
Scopus ID 85204145315
PubMed ID 39271795
Erfassungsdatum 2024-10-24
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