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Aneuploidy-induced proteostasis disruption impairs mitochondrial functions and mediates aggregation of mitochondrial precursor proteins through SQSTM1/p62

Aneuploidy disrupts proteostasis, leading to protein aggregation and accumulation of SQSTM1/p62 in the cytosol. Here, the authors show that cytosolic p62-positive bodies in aneuploid cells are enriched for mitochondrial precursor proteins, which in turn impairs mitochondrial function.

Prince Saforo Amponsah
Jan-Eric Bökenkamp
Zuzana Storchová
ResearchOpen Access17 Jun 2025
Nature Communications

Volume: 16, P: 1-20
Peroxiredoxins couple metabolism and cell division in an ultradian cycle

Hydrogen peroxide and peroxiredoxin oxidation levels oscillate during the yeast metabolic cycle, while the absence of peroxiredoxins or the use of thiol oxidants and reductants disrupts metabolic cycling and its coupling with cell division.

Prince Saforo Amponsah
Galal Yahya
Bruce Morgan
Research11 Feb 2021
Nature Chemical Biology

Volume: 17, P: 477-484
Real-time monitoring of basal H₂O₂ levels with peroxiredoxin-based probes

A fluorescent sensor combining a mutated form of the 2-Cys peroxiredoxin Tsa2 unable to undergo thioredoxin-mediated reduction with a redox-sensitive GFP protein allows real-time detection of baseline hydrogen peroxide levels in yeast cells.

Bruce Morgan
Koen Van Laer
Tobias P Dick
Research18 Apr 2016
Nature Chemical Biology

Volume: 12, P: 437-443

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