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  • Title: The protein import receptor MOM19 of yeast mitochondria.
    Author: Moczko M, Gärtner F, Pfanner N.
    Journal: FEBS Lett; 1993 Jul 12; 326(1-3):251-4. PubMed ID: 8392001.
    Abstract:
    We have identified the protein import receptor MOM19 of Saccharomyces cerevisiae mitochondria. MOM19 is exposed on the outer membrane surface and present in the mitochondrial receptor complex. Antibodies raised against MOM19 strongly inhibited the import of preproteins into isolated yeast mitochondria. Fab fragments prepared from the antibodies showed the same inhibitory effect. By using mutant mitochondria, which lacked the second import receptor MOM72, we found that the import of preproteins via MOM19 did not require the presence of MOM72. We conclude that MOM19 is required for preprotein translocation across the yeast mitochondrial outer membrane and is able to function independently of the receptor MOM72.
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