Activation of the MAP kinase homologue RK requires the phosphorylation of Thr-180 and Tyr-182 and both residues are phosphorylated in chemically stressed KB cells

  • Yair N. Doza
  • , Ana Cuenda
  • , Gareth M. Thomas
  • , Philip Cohen
  • , Angel R. Nebreda

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

A MAP kinase homologue, termed the reactivating kinase (RK), lies in a signalling pathway which mediates cellular responses to stress. Here we demonstrate that the stress-induced activation of the RK in human KB cells is accompanied by the phosphorylation of Thr-180 and Tyr-182, and that the phosphorylation of both residues is required for the activation of this enzyme.

Original languageEnglish
Pages (from-to)223-228
Number of pages6
JournalFEBS Letters
Volume364
Issue number2
DOIs
StatePublished - 8 May 1995
Externally publishedYes

Keywords

  • Arsenite
  • MAP kinase
  • Phosphotyrosine
  • Protein kinase
  • Stress

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