Elucidating the mitochondrial proteome of Toxoplasma gondii reveals the presence of a divergent cytochrome c oxidase
Journal Title
eLife
Publication Type
Journal Article
Abstract
The mitochondrion of apicomplexan parasites is critical for parasite survival, although the full complement of proteins that localize to this organelle has not been defined. Here we undertake two independent approaches to elucidate the mitochondrial proteome of the apicomplexan Toxoplasma gondii. We identify approximately 400 mitochondrial proteins, many of which lack homologs in the animals that these parasites infect, and most of which are important for parasite growth. We demonstrate that one such protein, termed TgApiCox25, is an important component of the parasite cytochrome c oxidase (COX) complex. We identify numerous other apicomplexan-specific components of COX, and conclude that apicomplexan COX, and apicomplexan mitochondria more generally, differ substantially in their protein composition from the hosts they infect. Our study highlights the diversity that exists in mitochondrial proteomes across the eukaryotic domain of life, and provides a foundation for defining unique aspects of mitochondrial biology in an important phylum of parasites.
Publisher
eLIfe Sciences
WEHI Research Division(s)
Systems Biology And Personalised Medicine; Infection And Immunity
PubMed ID
30204084
Open Access at Publisher's Site
https://doi.org/10.7554/eLife.38131
Rights Notice
Refer to copyright notice on published article.


Creation Date: 2018-09-14 02:33:44
Last Modified: 2019-01-09 09:46:52
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