Gene Symbol: PET309
Description: Pet309p
Alias: Pet309p
Species: Saccharomyces cerevisiae S288c

Top Publications

  1. Dresser M, Ewing D, Conrad M, Dominguez A, Barstead R, Jiang H, et al. DMC1 functions in a Saccharomyces cerevisiae meiotic pathway that is largely independent of the RAD51 pathway. Genetics. 1997;147:533-44 pubmed
    ..Interestingly, the pattern on CHEF gels of chromosome fragments that result from meiotic DNA double-strand break formation is different in DMC1 mutant strains from that seen in rad50S strains. ..
  2. Markov D, Savkina M, Anikin M, Del Campo M, Ecker K, Lambowitz A, et al. Identification of proteins associated with the yeast mitochondrial RNA polymerase by tandem affinity purification. Yeast. 2009;26:423-40 pubmed publisher
    ..Further, we found that Mss116p inhibits transcription by mtRNAP in vitro in a steady-state reaction. Our results support the hypothesis that Mss116p and Pet127p are involved in modulation of mtRNAP activity. ..
  3. Manthey G, Przybyla Zawislak B, McEwen J. The Saccharomyces cerevisiae Pet309 protein is embedded in the mitochondrial inner membrane. Eur J Biochem. 1998;255:156-61 pubmed
    ..E. (1995) EMBO J. 14, 4031-4043]. To facilitate identification and intracellular localization of the protein Pet309p, that is encoded by the PET309 gene, Pet309p was tagged at the carboxy terminus with an epitope from the human c-..
  4. Naithani S, Saracco S, Butler C, Fox T. Interactions among COX1, COX2, and COX3 mRNA-specific translational activator proteins on the inner surface of the mitochondrial inner membrane of Saccharomyces cerevisiae. Mol Biol Cell. 2003;14:324-33 pubmed
    ..translation of the COX1, COX2, and COX3 mRNAs is activated mRNA specifically by the nuclearly coded proteins Pet309p, Pet111p, and the concerted action of Pet54p, Pet122p, and Pet494p, respectively...
  5. Krause K, Lopes de Souza R, Roberts D, Dieckmann C. The mitochondrial message-specific mRNA protectors Cbp1 and Pet309 are associated in a high-molecular weight complex. Mol Biol Cell. 2004;15:2674-83 pubmed
    ..Among these, we identified another message-specific factor, Pet309, which promotes the stability and translation of mitochondrial cytochrome oxidase subunit I mRNA...
  6. Fiori A, Perez Martinez X, Fox T. Overexpression of the COX2 translational activator, Pet111p, prevents translation of COX1 mRNA and cytochrome c oxidase assembly in mitochondria of Saccharomyces cerevisiae. Mol Microbiol. 2005;56:1689-704 pubmed
    ..bearing the untranslated regions of the COX2 mRNA, and by overproduction of the COX1 mRNA-specific activators, Pet309p and Mss51p...
  7. Perez Martinez X, Butler C, Shingu Vazquez M, Fox T. Dual functions of Mss51 couple synthesis of Cox1 to assembly of cytochrome c oxidase in Saccharomyces cerevisiae mitochondria. Mol Biol Cell. 2009;20:4371-80 pubmed publisher
    ..Regulation of COX1 mRNA translation by Mss51 seems to be an example of a homeostatic mechanism in which a positive effector of gene expression interacts with the product it regulates in a posttranslational assembly process. ..
  8. Manthey G, McEwen J. The product of the nuclear gene PET309 is required for translation of mature mRNA and stability or production of intron-containing RNAs derived from the mitochondrial COX1 locus of Saccharomyces cerevisiae. EMBO J. 1995;14:4031-43 pubmed
    ..This result suggests that Pet309p acts through the COX1 5' UTR to activate initiation of translation of the COX1 coding region.
  9. Tavares Carreón F, Camacho Villasana Y, Zamudio Ochoa A, Shingu Vazquez M, Torres Larios A, Perez Martinez X. The pentatricopeptide repeats present in Pet309 are necessary for translation but not for stability of the mitochondrial COX1 mRNA in yeast. J Biol Chem. 2008;283:1472-9 pubmed
    b>Pet309 is a protein essential for respiratory growth. It is involved in translation of the yeast mitochondrial COX1 gene, which encodes subunit I of the cytochrome c oxidase. Pet309 is also involved in stabilization of the COX1 mRNA...

More Information


  1. Zamudio Ochoa A, Camacho Villasana Y, García Guerrero A, Pérez Martínez X. The Pet309 pentatricopeptide repeat motifs mediate efficient binding to the mitochondrial COX1 transcript in yeast. RNA Biol. 2014;11:953-67 pubmed publisher
    ..Mitochondrial synthesis of Cox1, the largest subunit of the cytochrome c oxidase complex, is controlled by Mss51 and Pet309, two mRNA-specific translational activators that act via the COX1 mRNA 5'-UTR through an unknown mechanism...
  2. Khalimonchuk O, Bird A, Winge D. Evidence for a pro-oxidant intermediate in the assembly of cytochrome oxidase. J Biol Chem. 2007;282:17442-9 pubmed
    ..Studies on the hydrogen peroxide sensitivity in CcO assembly mutants reveal new aspects of the CcO assembly process. ..