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The mitochondrial phospholipid metabolism critically depends on members of the conserved Ups1/PRELI-like protein family in the intermembrane space. Ups1 and Ups2 (also termed Gep1) were shown to regulate the accumulation of cardiolipin (CL) and phosphatidylethanolamine (PE), respectively, in a lipid-specific but coordinated manner. It remained enigmatic,(More)
The generation of cellular energy depends on the coordinated assembly of nuclear and mitochondrial-encoded proteins into multisubunit respiratory chain complexes in the inner membrane of mitochondria. Here, we describe the identification of a conserved metallopeptidase present in the intermembrane space, termed Atp23, which exerts dual activities during the(More)
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