A Mitochondrial Ribosomal RNA Mutation and Its Nuclear Suppressors
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Molecular Biology
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We have isolated cold-resistant revertants from a mitochondrial cold-sensitive mutation, cs909, localized in the 21S ribosomal RNA gene. Two types of revertants have been isolated: (1) strong revertants which were shown to be due to a single, nuclear, dominant suppressor; (2) weak revertants which are all due to the presence of a single, nuclear, recessive suppressor. The recessive suppressor, when separated from the mitochondrial mutation, itself confers a cold-sensitive phenotype, that is, there is a mutual suppression between the mitochondrial cold-sensitive mutation and the nuclear cold-sensitive mutation. The suppressor by itself produces modified ribosomes and therefore probably codes for an element of the mitochondrial ribosome such as a ribosomal protein.
Nguyen C, Reisdorf P, Lemeignan B, Bolotin-Fukuhara M Mol Gen Genet. 1994; 243(5):575-83.
PMID: 8208248 DOI: 10.1007/BF00284206.
Rinaldi T, Francisci S, Zennaro E, Frontali L, Bolotin-Fukuhara M Curr Genet. 1994; 25(5):451-5.
PMID: 7521797 DOI: 10.1007/BF00351785.
Nuclear mutations affecting the stability of the mitochondrial genome in S. cerevisiae.
Rayko E, Goursot R Curr Genet. 1985; 10(3):171-7.
PMID: 3916806 DOI: 10.1007/BF00798746.
Bolotin-Fukuhara M Nucleic Acids Res. 1988; 16(19):9299-306.
PMID: 3050898 PMC: 338707. DOI: 10.1093/nar/16.19.9299.
Hefta L, Lewin A, Bolotin-Fukuhara M Mol Gen Genet. 1987; 207(1):106-13.
PMID: 2885722 DOI: 10.1007/BF00331497.