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The suppressor of AAC2 lethality SAL1 modulates sensitivity of heterologously expressed Artemia ADP/ATP carrier to bongkrekate in yeast
Wysocka-Kapcinska, M.; Torocsik, B.; Turiak, L.; Tsaprailis, G.; David, C.L.; Hunt, A.M.; Vekey, K.; Adam-Vizi, V.; Kucharczyk, R.; Chinopoulos, C. (2013). The suppressor of AAC2 lethality SAL1 modulates sensitivity of heterologously expressed Artemia ADP/ATP carrier to bongkrekate in yeast. PLoS One 8(9): e74187. https://dx.doi.org/10.1371/journal.pone.0074187
In: PLoS One. Public Library of Science: San Francisco. ISSN 1932-6203; e-ISSN 1932-6203, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Marine Sciences
    Marine Sciences > Marine Genomics
    Scientific Community
    Scientific Publication
    Marien/Kust
Project Top | Auteurs 
  • Association of European marine biological laboratories, meer
Auteurs  Top 
  • Wysocka-Kapcinska, M.
  • Torocsik, B.
  • Turiak, L.
  • Tsaprailis, G.
  • David, C.L.
  • Hunt, A.M.
  • Vekey, K.
  • Adam-Vizi, V.
  • Kucharczyk, R.
  • Chinopoulos, C.
Abstract
    The ADP/ATP carrier protein (AAC) expressed in Artemia franciscana is refractory to bongkrekate. We generated two strains of Saccharomyces cerevisiae where AAC1 and AAC3 were inactivated and the AAC2 isoform was replaced with Artemia AAC containing a hemagglutinin tag (ArAAC-HA). In one of the strains the suppressor of ΔAAC2 lethality, SAL1, was also inactivated but a plasmid coding for yeast AAC2 was included, because the ArAACΔsal1Δ strain was lethal. In both strains ArAAC-HA was expressed and correctly localized to the mitochondria. Peptide sequencing of ArAAC expressed in Artemia and that expressed in the modified yeasts revealed identical amino acid sequences. The isolated mitochondria from both modified strains developed 85% of the membrane potential attained by mitochondria of control strains, and addition of ADP yielded bongkrekate-sensitive depolarizations implying acquired sensitivity of ArAAC-mediated adenine nucleotide exchange to this poison, independent from SAL1. However, growth of ArAAC-expressing yeasts in glycerol-containing media was arrested by bongkrekate only in the presence of SAL1. We conclude that the mitochondrial environment of yeasts relying on respiratory growth conferred sensitivity of ArAAC to bongkrekate in a SAL1-dependent manner.
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