Comparative analysis of mitochondrial proteomes across the tree of life.

Comparative analysis reveals 8,619 mitochondrial proteins across eight species, uncovering conserved families and potential drug targets in eukaryotic pathogens.

• Why it matters: Understanding mitochondrial evolution and diversity is crucial for insights into eukaryotic origins and for developing treatments against protozoan infections.
• What they did: The study analyzed experimentally defined mitoproteomes from the MitoCarta Tree of Life project, identifying protein families and training a classifier to predict mitoproteomes in approximately 200 eukaryotes.
• The result: Findings show diverse mitochondrial gene family expansions and reductions, and reconstruct the last eukaryotic common ancestor’s complex mitochondrion, enabling better understanding of mitochondrial evolution and function.