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Essential Metal Uptake in Gram-negative Bacteria: X-ray Fluorescence, Radioisotopes, and Cell Fractionation
Published on: February 1, 2018
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Metalloprotein enabled redox signal transduction in microbes
Murphi T Williams1, Eaindra Yee1, Grant W Larson1
1Department of Chemistry, University of Minnesota Twin Cities, 207 Pleasant St. SE, Minneapolis MN 55414, USA.
Current Opinion in Chemical Biology
|June 13, 2023
Summary
Microbial metalloproteins sense environmental redox changes using metal cofactors. This review explores how iron, nickel, and manganese sensors detect redox signals and transmit them to DNA, impacting microbial metabolism.
Area of Science:
- Biochemistry and Microbiology
- Metalloprotein structure and function
- Redox signaling in microorganisms
Background:
- Microbes rely on metalloproteins with metal cofactors to detect and respond to environmental redox fluctuations.
- Understanding how these proteins sense redox events and relay signals to DNA for metabolic regulation is crucial for both chemistry and biology.
Purpose of the Study:
- To review recently characterized microbial metalloprotein sensors.
- To focus on the coordination and oxidation states of metals in redox sensing.
- To elucidate signal transmission mechanisms from the metal center to downstream pathways.
Main Methods:
- Literature review of metalloprotein sensors.
- Analysis of metal coordination and oxidation states.
- Examination of signal transduction pathways.
Main Results:
- Detailed review of iron, nickel, and manganese-based microbial sensors.
- Explanation of how metal centers recognize redox stimuli.
- Discussion of signal transmission beyond the metal center.
Conclusions:
- Metalloprotein sensors play a vital role in microbial redox homeostasis.
- Further research is needed to fully understand metalloprotein-based signal transduction pathways.
- Identifying knowledge gaps in this field is essential for future discoveries.
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