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The MEF2 gene is essential for yeast longevity, with a dual role in cell respiration and maintenance of mitochondrial membrane potential

FEBS Letters, ISSN: 0014-5793, Vol: 585, Issue: 8, Page: 1140-1146
2011
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Article Description

The Saccharomyces cerevisiae MEF2 gene is a mitochondrial protein translation factor. Formerly believed to catalyze peptide elongation, evidence now suggests its involvement in ribosome recycling. This study confirms the role of the MEF2 gene for cell respiration and further uncovers a slow growth phenotype and reduced chronological lifespan. Furthermore, in comparison with cytoplasmic ρ 0 strains, mef2 Δ strains have a marked reduction of the inner mitochondrial membrane potential and mitochondria show a tendency to aggregate, suggesting an additional role for the MEF2 gene in maintenance of mitochondrial health, a role that may also be shared by other mitochondrial protein synthesis factors.

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