Lck regulates Vav activation of members of the Rho family of GTPases
The University of North Carolina at Chapel Hill University Libraries, 1997
Online
unknown
Zugriff:
Vav is a member of a family of oncogene proteins that share an approximately 250-amino-acid motif called a Dbl homology domain. Paradoxically, Dbl itself and other proteins containing a Dbl domain catalyze GTP-GDP exchange for Rho family proteins, whereas Vav has been reported to catalyze GTP-GDP exchange for Ras proteins. We present Saccharomyces cerevisiae genetic data, in vitro biochemical data, and animal cell biological data indicating that Vav is a guanine nucleotide exchange factor for Rho-related proteins, but in similar genetic and biochemical experiments we fail to find evidence that Vav is a guanine nucleotide exchange factor for Ras. Further, we present data indicating that the Lck kinase activates the guanine nucleotide exchange factor and transforming activity of Vav.
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Lck regulates Vav activation of members of the Rho family of GTPases
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Autor/in / Beteiligte Person: | Han, Jaewon ; Broek, Daniel ; Wei, Wen ; Der, Channing J. ; J K Westwick ; Mosteller, Raymond D. ; Das, Balaka ; Khosravi-Far, Roya ; L. Van Aelst |
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Veröffentlichung: | The University of North Carolina at Chapel Hill University Libraries, 1997 |
Medientyp: | unknown |
DOI: | 10.17615/nf72-ba86 |
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