Journal
FEBS LETTERS
Volume 588, Issue 1, Pages 131-137Publisher
WILEY
DOI: 10.1016/j.febslet.2013.11.020
Keywords
Eps15; TNF-alpha; TAK1; EGF; p38
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Institute of Natural Medicine, University of Toyama
- Grants-in-Aid for Scientific Research [23590071, 23590172, 24659017, 24659348, 24700971] Funding Source: KAKEN
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Epidermal growth factor receptor pathway substrate 15 (Eps15) has been suggested to be involved in the endocytosis of cell surface receptors, including epidermal growth factor receptor (EGFR). Eps15 is phosphorylated at Tyr-849 upon stimulation with EGF during endocytic processes. In the present study, we found that stimulation of HeLa cells with EGF or TNF-alpha induced transient phosphorylation of Eps15 at Ser-796. Inhibition of p38 completely blocked phosphorylation and recombinant p38 alpha directly phosphorylated the residue. These results demonstrate a novel stress kinase-mediated signaling pathway to Eps15 endocytic adapter protein. (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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