Interaction between the keratin cytoskeleton and eEF1Bγ affects protein synthesis in epithelial cells

Seyun Kim, Juliane Kellner, Chang Hun Lee, Pierre A. Coulombe

Research output: Contribution to journalArticle


Eukaryotic elongation factor-1 (eEF1) is essential for peptide-chain elongation during translation. We report that its γ subunit (eEF1Bγ) specifically binds, and bundles, keratin intermediate filaments. Disrupting this interaction depresses translation by ∼20% and selectively increases 80S ribosomes in epithelial cells, an outcome recapitulated by RNA interference-mediated silencing of eEF1Bγ. These findings extend the emerging relationship between keratin proteins and the translational machinery.

Original languageEnglish (US)
Pages (from-to)982-983
Number of pages2
JournalNature Structural and Molecular Biology
Issue number10
StatePublished - Oct 1 2007


ASJC Scopus subject areas

  • Structural Biology
  • Molecular Biology

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