SHE9 deletion mutants display fitness defects during diauxic shift in Saccharomyces cerevisiae

MicroPubl Biol. 2023 Jul 28:2023:10.17912/micropub.biology.000899. doi: 10.17912/micropub.biology.000899. eCollection 2023.

Abstract

Saccharomyces cerevisiae protein She9 is localized to the inner mitochondrial membrane and is required for normal mitochondrial morphology. While deletion mutants of SHE9 ( she9Δ ) are viable and display large ring-like mitochondrial structures, the molecular function of SHE9 is still unknown. We report a decreased growth of she9Δ cells during a diauxic shift, where mitochondria are primarily employing oxidative phosphorylation to generate ATP versus the alternative mechanism of glycolysis in high glucose conditions. Further bioinformatics analysis reveal putative functional protein associations, and proposes a model to aid in the understanding of the molecular function of She9.

Grants and funding

Work reported in this publication was supported by the National Institutes of Health Common Fund and Office of Scientific Workforce Diversity under three linked awards RL5GM118981, TL4GM118983, and 1UL1GM118982 administered by the National Institute of General Medical Sciences . This work was also supported by National Science Foundation RCN-UBE Award (NSF 1624174).