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Measurement of mRNA Decay Rates in Saccharomyces cerevisiae Using rpb1-1 Strains
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Nonsense-mediated mRNA decay and metal ion homeostasis and detoxification in Saccharomyces cerevisiae

Xinyi Zhang1, Bessie W Kebaara2

  • 1Department of Biology, Baylor University, One Bear Place #97388, Waco, TX, 76798, USA.

Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
|October 18, 2022
PubMed

Insights

The Nonsense-mediated mRNA decay (NMD) pathway regulates gene expression. NMD impacts metal homeostasis and detoxification pathways, including magnesium, zinc, iron, copper, and cadmium.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • The Nonsense-mediated mRNA decay (NMD) pathway is a conserved, translation-dependent mRNA degradation process.
  • NMD is primarily known for eliminating mRNAs with premature termination codons (PTCs).
  • Emerging evidence highlights NMD's crucial role in regulating endogenous mRNA levels and gene expression.

Purpose of the Study:

  • To review the multifaceted roles of the NMD pathway.
  • To explore the intricate connections between NMD and metal homeostasis and detoxification pathways.
  • To summarize NMD's involvement in the regulation of magnesium, zinc, iron, copper, and cadmium.

Main Methods:

  • Literature review of existing studies on NMD and metal metabolism.
  • Analysis of research on NMD's regulatory functions in gene expression.
  • Synthesis of findings related to NMD's impact on specific metal ion homeostasis and detoxification.

Main Results:

  • NMD actively regulates the expression of natural mRNAs, influencing various physiological processes.
  • The NMD pathway is intrinsically linked to nutritional bio-metal homeostasis and metal ion detoxification.
  • Specific roles of NMD in magnesium, zinc, iron, and copper homeostasis, and cadmium detoxification have been described.

Conclusions:

  • NMD is a key regulator of gene expression beyond its role in nonsense-mediated decay.
  • NMD significantly impacts cellular metal ion balance and detoxification mechanisms.
  • Understanding NMD's role in metal homeostasis is crucial for comprehending cellular physiology and disease.
Keywords:
CopperIronMagnesiumMetal ionsNonsense-mediated mRNA decay (NMD)Zinc

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