Proteomic strategies to interrogate the Fe-S proteome

Area of Science:

• Biochemistry
• Proteomics
• Cell Biology

Background:

• Iron-sulfur (Fe-S) clusters are essential inorganic cofactors involved in diverse cellular functions.
• The Fe-S proteome, encompassing all Fe-S cluster-binding proteins, is dynamic and influenced by synthesis, delivery, and degradation pathways.
• Identifying novel Fe-S proteins and understanding their in vivo dynamics remains challenging.

Purpose of the Study:

• To review the current understanding of the Fe-S proteome and Fe-S cluster biology.
• To describe state-of-the-art proteomic strategies for studying native Fe-S clusters.
• To highlight techniques for identifying new Fe-S proteins and characterizing their in vivo dynamics.

Main Methods:

• Review of recent advancements in mass spectrometry, proteomics, and chemical biology.
• Discussion of high-throughput techniques applicable to native Fe-S cluster binding.
• Analysis of strategies for characterizing the Fe-S proteome and Fe-S cluster dynamics.

Main Results:

• The Fe-S proteome is highly dynamic, subject to continuous cluster biogenesis and regulated loss.
• Novel Fe-S proteins are difficult to identify using traditional methods.
• Emerging proteomic techniques offer powerful tools for studying native Fe-S proteins and their functions.
• Recent advancements enable detailed characterization of Fe-S cluster binding and dynamics in vivo.

Conclusions:

• Accurate identification and characterization of the Fe-S proteome are crucial for understanding cellular redox and regulatory processes.
• Advanced proteomic strategies are essential for overcoming challenges in Fe-S protein discovery and dynamic analysis.
• This review provides a comprehensive overview of Fe-S cluster biology and cutting-edge proteomic approaches.