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Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
Published on: August 31, 2017
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Sulfur Administration in Fe-S Cluster Homeostasis
Leszek Rydz1, Maria Wróbel1, Halina Jurkowska1
1Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Kraków, Poland.
Antioxidants (Basel, Switzerland)
|November 27, 2021
Summary
Mitochondria synthesize iron-sulfur (Fe-S) clusters, essential for cellular functions. This study explores how sulfurtransferases contribute to Fe-S cluster formation and repair in mammals and yeasts.
Area of Science:
- Cellular Biology
- Biochemistry
- Mitochondrial Biology
Background:
- Mitochondria are central to iron-sulfur (Fe-S) cluster biogenesis, housing essential enzymes like cysteine desulfurase.
- Fe-S clusters are vital components of numerous proteins but are susceptible to oxidative stress and degradation.
- Mitochondrial Fe-S cluster assembly machinery components are crucial for supplying cytosolic and nuclear needs.
Purpose of the Study:
- To review the role of sulfurtransferases in Fe-S cluster formation and maturation.
- To investigate the involvement of sulfurtransferases in the reconstitution of damaged Fe-S clusters.
- To summarize current knowledge on sulfurtransferase functions in Fe-S cluster metabolism in mammals and yeasts.
Main Methods:
- Literature review and synthesis of existing research on sulfurtransferases and Fe-S cluster biogenesis.
- Analysis of the proposed mechanisms of sulfur transfer by rhodanese and 3-mercaptopyruvate sulfurtransferase.
- Examination of studies investigating Fe-S cluster repair and enzyme activity restoration.
Main Results:
- Sulfurtransferases are implicated not only in sulfur donation but also in the de novo synthesis of Fe-S clusters.
- These enzymes play a role in the maturation and reconstitution of Fe-S clusters, restoring enzyme activity.
- Evidence suggests conserved functions of sulfurtransferases in Fe-S cluster metabolism across different species.
Conclusions:
- Sulfurtransferases are multifunctional enzymes critical for maintaining cellular Fe-S cluster homeostasis.
- Their involvement extends beyond sulfur transfer to encompass Fe-S cluster biogenesis and repair pathways.
- Further research into sulfurtransferase mechanisms can elucidate novel therapeutic targets for Fe-S cluster-related disorders.
Keywords:
3-mercaptopyruvate sulfurtransferaseFe–S clusteriron–sulfur proteinoxidative stressrhodaneseMore Related Videos
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