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Eukaryotic Cell doi:10.1128/EC.00132-08
Copyright (c) 2008, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.

Pet191 is a cytochrome c oxidase assembly factor in Saccharomyces cerevisiae

From the University of Utah Health Sciences Center, Departments of Medicine and Biochemistry, Salt Lake City, Utah 84132

^* To whom correspondence should be addressed. Email: dennis.winge{at}hsc.utah.edu.

	Abstract

The twin Cx₉C motif protein Pet191 is essential for cytochrome c oxidase maturation. The motif Cys residues are functionally important and appear to be present in disulfide linkages within a large oligomeric complex associated with the mitochondrial inner membrane. The import of Pet191 differs from other twin Cx₉C motif class of proteins in being independent of the MIA pathway.