MCB
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Itoh, K.
Right arrow Articles by Sokol, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Itoh, K.
Right arrow Articles by Sokol, S.

 Previous Article  |  Next Article 

Molecular and Cellular Biology, March 2000, p. 2228-2238, Vol. 20, No. 6
0270-7306/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

Interaction of Dishevelled and Xenopus Axin-Related Protein Is Required for Wnt Signal Transduction

Keiji Itoh, Alena Antipova, Marianne J. Ratcliffe, and Sergei Sokol*

Department of Microbiology and Molecular Genetics, Harvard Medical School, and Molecular Medicine Unit, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215

Received 13 September 1999/Returned for modification 18 October 1999/Accepted 21 December 1999

Signaling by the Wnt family of secreted proteins plays an important role in animal development and is often misregulated in carcinogenesis. Wnt signal transduction is controlled by the rate of degradation of beta -catenin by a complex of proteins including glycogen synthase kinase 3 (GSK3), adenomatous polyposis coli, and Axin. Dishevelled is required for Wnt signal transduction, and its activation results in stabilization of beta -catenin. However, the biochemical events underlying this process remain largely unclear. Here we show that Xenopus Dishevelled (Xdsh) interacts with a Xenopus Axin-related protein (XARP). This interaction depends on the presence of the Dishevelled-Axin (DIX) domains in both XARP and Xdsh. Moreover, the same domains are essential for signal transduction through Xdsh. Finally, our data point to a possible mechanism for signal transduction, in which Xdsh prevents beta -catenin degradation by displacing GSK3 from its complex with XARP.

* Corresponding author. Mailing address: Department of Microbiology and Molecular Genetics, Harvard Medical School, and Molecular Medicine Unit, Beth Israel Deaconess Medical Center, 330 Brookline Ave., Boston, MA 02215. Phone: (617) 667-3894. Fax: (617) 667-2913. E-mail: ssokol{at}caregroup.harvard.edu.

Molecular and Cellular Biology, March 2000, p. 2228-2238, Vol. 20, No. 6
0270-7306/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. J. Virol. Eukaryot. Cell
Microbiol. Mol. Biol. Rev. Clin. Vaccine Immunol. All ASM Journals

Copyright © 2000 by the American Society for Microbiology. All rights reserved.