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  • Title: A mitochondrial frameshift suppressor maps in the tRNASer-var1 region of the mitochondrial genome of the yeast S. cerevisiae.
    Author: Weiss-Brummer B, Sakai H, Hüttenhofer A.
    Journal: Curr Genet; 1989 Apr; 15(4):239-46. PubMed ID: 2546683.
    Abstract:
    A polypeptide chain-terminating mutation (M5631) previously has been shown to be a +1T insertion in the yeast mitochondrial gene oxi1, coding for subunit II of the cytochrome c oxidase. A spontaneously arisen frameshift suppressor (mfs-1) that is mitochondrially inherited suppresses this mutation to a considerable extent. The suppressor mutation was mapped by genetic and molecular analyses in the mitochondrial tRNASer-var1 region of the mitochondrial genome of the yeast S. cerevisiae. Genetic analyses show that the suppressor mfs-1 does not suppress other known mitochondrial frameshift mutations, or missense and nonsense mutations.
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