RACK1 is a Functional Target of the E1A Oncoprotein

Anna Severino, Alfonso Baldi, Giuliano Cottone, Mei Han, Nianli Sang, Antonio Giordano, Anna Maria Mileo, Marco G. Paggi, Antonio De Luca

Research output: Contribution to journalArticle

Abstract

The adenoviral E1A proteins have been implicated in promotion of proliferation and transformation, inhibition of differentiation, induction of apoptosis, regulation of transcription, and suppression of tumor growth. The ability of E1A to override the fundamental controls of host cells is based on its ability to physically interact with several cellular proteins. We recently characterized RACK1 as a new E1A-interacting protein. In this report, we show that the extreme N-terminal region of E1A, spanning from aminoacids 1-36, and the conserved WD regions of RACK1 are responsible for this interaction. We also demonstrate that E1A and RACK1 colocalize at the perinuclear membrane in the cells. Furthermore, we provide evidence that E1A is able to antagonize the inhibitory effects of RACK1 on Src activity. These results suggest that RACK1 signaling pathway may be a functional target of E1A, contributing to E1A oncogenic effect in the host cells.

Original languageEnglish
Pages (from-to)134-139
Number of pages6
JournalJournal of Cellular Physiology
Volume199
Issue number1
DOIs
Publication statusPublished - Apr 2004

Fingerprint

Oncogene Proteins
Proteins
Transcription
Tumors
Cell Membrane
Apoptosis
Membranes
Growth
Neoplasms

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Cell Biology
  • Physiology

Cite this

Severino, A., Baldi, A., Cottone, G., Han, M., Sang, N., Giordano, A., ... De Luca, A. (2004). RACK1 is a Functional Target of the E1A Oncoprotein. Journal of Cellular Physiology, 199(1), 134-139. https://doi.org/10.1002/jcp.10448

RACK1 is a Functional Target of the E1A Oncoprotein. / Severino, Anna; Baldi, Alfonso; Cottone, Giuliano; Han, Mei; Sang, Nianli; Giordano, Antonio; Mileo, Anna Maria; Paggi, Marco G.; De Luca, Antonio.

In: Journal of Cellular Physiology, Vol. 199, No. 1, 04.2004, p. 134-139.

Research output: Contribution to journalArticle

Severino, A, Baldi, A, Cottone, G, Han, M, Sang, N, Giordano, A, Mileo, AM, Paggi, MG & De Luca, A 2004, 'RACK1 is a Functional Target of the E1A Oncoprotein', Journal of Cellular Physiology, vol. 199, no. 1, pp. 134-139. https://doi.org/10.1002/jcp.10448
Severino A, Baldi A, Cottone G, Han M, Sang N, Giordano A et al. RACK1 is a Functional Target of the E1A Oncoprotein. Journal of Cellular Physiology. 2004 Apr;199(1):134-139. https://doi.org/10.1002/jcp.10448
Severino, Anna ; Baldi, Alfonso ; Cottone, Giuliano ; Han, Mei ; Sang, Nianli ; Giordano, Antonio ; Mileo, Anna Maria ; Paggi, Marco G. ; De Luca, Antonio. / RACK1 is a Functional Target of the E1A Oncoprotein. In: Journal of Cellular Physiology. 2004 ; Vol. 199, No. 1. pp. 134-139.
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