Fission yeast TORC1 prevents eIF2α phosphorylation in response to nitrogen and amino acids via Gcn2 kinase.

@article{Valbuena2012FissionYT,
  title={Fission yeast TORC1 prevents eIF2α phosphorylation in response to nitrogen and amino acids via Gcn2 kinase.},
  author={Noelia Valbuena and Ana Elisa Rozal{\'e}n and Sergio Moreno},
  journal={Journal of cell science},
  year={2012},
  volume={125 Pt 24},
  pages={5955-9}
}
Serine 51 phosphorylation of the eukaryotic initiation factor-2α (eIF2α) is an important mechanism involved in blocking general protein synthesis in response to diverse types of stress. In fission yeast, three kinases (Hri1, Hri2 and Gcn2) can phosphorylate eIF2α at serine 51. In this study, we show that Tor2, as part of the TORC1 complex, prevents the phosphorylation of eIF2α in cells growing in the presence of nitrogen and amino acids. Inhibition of TORC1, either by rapamycin treatment… CONTINUE READING

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