Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10883155 | Mitochondrion | 2011 | 6 Pages |
Abstract
Starting from a transcriptome based study of the spatio-temporal expression of yeast genes encoding mitochondrial proteins of unknown function, we have identified the gene BCA1 (YLR077W). A FISH analysis showed that the BCA1 mRNA co-localized with the mitochondrial network. Cellular fractionation revealed that Bca1 is bound to the mitochondrial inner-membrane and protrudes into the inter-membrane space. We show that Bca1 controls an early step in complex III assembly and that the supra-molecular organization of Bca1 is dependent upon the assembly level of complex III. Thus, Bca1 is a novel assembly factor for the respiratory complex III.
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Authors
Lise Mathieu, Sophie Marsy, Yann Saint-Georges, Claude Jacq, Geneviève Dujardin,