Stimulation of p21ras upon T-cell activation
- 23 August 1990
- journal article
- research article
- Published by Springer Nature in Nature
- Vol. 346 (6286), 719-723
- https://doi.org/10.1038/346719a0
Abstract
External signals that control the activity of proteins encoded by the ras proto-oncogenes have not previously been characterized. It is now shown that stimulation of the antigen receptor of T lymphocytes causes a rapid activation of p21ras. The mechanism seems to involve a decrease in the activity of GAP, the GTPase-activating protein, on stimulation of protein kinase C. In lymphocytes, p21ras may therefore be an important mediator of the action of protein kinase C.Keywords
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