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Sci. STKE, 9 December 2003
Vol. 2003, Issue 212, p. re15
[DOI: 10.1126/stke.2122003re15]
REVIEWS
TOR Signaling
Thurl E. Harris and
John C. Lawrence Jr.*
Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.
Abstract:
The mammalian target of rapamycin, mTOR, is a protein Ser-Thr kinase that functions as a central element in a signaling pathway involved in the control of cell growth and proliferation. The activity of mTOR is controlled not only by amino acids, but also by hormones and growth factors that activate the protein kinase Akt. The signaling pathway downstream of Akt leading to mTOR involves the protein products of the genes mutated in tuberous sclerosis, TSC1 and TSC2, and the small guanosine triphosphatase, Rheb. In cells, mTOR is found in a complex with two other proteins, raptor and mLST8. In this review, we describe recent progress in understanding the control of the mTOR signaling pathway and the role of mTOR-interacting proteins.
*Corresponding author. Telephone: 434-924-1584; fax, 434-982-3575; e-mail, jcl3p{at}virginia.edu
Citation: T. E. Harris, J. C. Lawrence, Jr., TOR Signaling. Sci. STKE 2003, re15 (2003).
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