Complexome Profiling-Exploring Mitochondrial Protein Complexes in Health and Disease

Area of Science:

• Biochemistry
• Proteomics
• Cell Biology

Background:

• Complexome profiling (CP) is an advanced proteomic technique.
• It integrates protein separation with mass spectrometry for multiprotein complex analysis.

Purpose of the Study:

• To review major findings from complexome profiling applications.
• To highlight the method's utility in studying mitochondrial oxidative phosphorylation (OXPHOS) complexes.
• To discuss its potential in investigating disease mechanisms and future advancements.

Main Methods:

• Separation of native proteins via electrophoresis, size exclusion chromatography, or density gradient centrifugation.
• Identification and quantification using tandem mass spectrometry.
• Computational clustering for visualizing protein complex data.

Main Results:

• CP has been extensively used to analyze mitochondrial OXPHOS complexes across species.
• The method has identified novel protein interactors crucial for complex assembly and function.
• CP has elucidated the impact of mutations on mitochondrial disorders and complexome rearrangements.

Conclusions:

• Complexome profiling offers significant advantages for studying multiprotein complexes.
• It provides insights into the dynamics and pathophysiology of mitochondrial diseases.
• Further development of CP methodology holds promise for advancing biological research.