Physical mapping of genes on yeast mitochondrial DNA: Localization of antibiotic resistance loci, and rRNA and tRNA genes

1978 ◽  
Vol 163 (3) ◽  
pp. 241-255 ◽  
Author(s):  
Richard Morimoto ◽  
Sylvie Merten ◽  
Alfred Lewin ◽  
Nancy C. Martin ◽  
Murray Rabinowitz
Biochemistry ◽  
1977 ◽  
Vol 16 (21) ◽  
pp. 4672-4677 ◽  
Author(s):  
Nancy C. Martin ◽  
Murray Rabinowitz ◽  
Hiroshi Fukuhara

1980 ◽  
Vol 8 (21) ◽  
pp. 5007-5016 ◽  
Author(s):  
Dawn Newman ◽  
Hung D. Pham ◽  
Karen Underbrink-Lyon ◽  
Nancy C. Martin

Genetics ◽  
1980 ◽  
Vol 94 (1) ◽  
pp. 69-92
Author(s):  
Jeffrey A Knight

ABSTRACT A large number of mitochondrial antibiotic-resistant mutants have been isolated following mutagenesis with manganese. These include several different phenotypic classes of mutants, as distinguished by cross-resistance patterns, that have been found to be allelic at capl or eryl; some have been found to be heteroalle1ic.—Seven chloramphenicol-resistant mutants have been identified that are nonallelic by recombination tests with the three loci (capl, spil and eryl) previously identified in the ribosomal region. Four of these are allelic with each other and define a new locus, cap3; two others are allelic and define another new locus, cap2; the seventh maps at yet a different locus, cap4. One new spiramycin-resistant mutant has been identified that defines still another new locus, spi2. A variety of genetic techniques have been used to map these loci within the ribosomal region of the mitochondrial genome.—Manganese has been shown to be effective in inducing the mutation from ω- to ωn in many mutants that experience a simultaneous mutation at the closely linked capl locus. The ωn mutation has also been described in the capl mutant, and this locus has been shown to be more closely linked to o than capl is to ω.


1980 ◽  
Vol 255 (24) ◽  
pp. 11922-11926 ◽  
Author(s):  
S.G. Bonitz ◽  
G. Coruzzi ◽  
B.E. Thalenfeld ◽  
A. Tzagoloff ◽  
G. Macino

1988 ◽  
Vol 8 (6) ◽  
pp. 2361-2366 ◽  
Author(s):  
K A Jarrell ◽  
R C Dietrich ◽  
P S Perlman

A self-splicing group II intron of yeast mitochondrial DNA (aI5g) was divided within intron domain 4 to yield two RNAs that trans-spliced in vitro with associated trans-branching of excised intron fragments. Reformation of the domain 4 secondary structure was not necessary for the trans reaction, since domain 4 sequences were shown to be dispensable. Instead, the trans reaction depended on a previously unpredicted interaction between intron domain 5, the most highly conserved region of group II introns, and another region of the RNA. Domain 5 was shown to be essential for cleavage at the 5' splice site. It stimulated that cleavage when supplied as a trans-acting RNA containing only 42 nucleotides of intron sequence. The relevance of our findings to in vivo trans-splicing mechanisms is discussed.


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