期刊
JOURNAL OF NEUROSCIENCE
卷 29, 期 50, 页码 15703-15712出版社
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.4351-09.2009
关键词
-
资金
- Douglas and Ellen Rosenberg Foundation
- The Keck Foundation
- National Institutes of Health [NS45093]
- National Institute on Aging [AG031380]
Multiple recent reports implicate amyloid precursor protein (APP) signaling in the pathogenesis of Alzheimer's disease, but the APP-dependent signaling network involved has not been defined. Here, we report a novel consensus sequence for interaction with the PDZ-1 and PDZ-2 domains of the APP-interacting proteins Mint1, Mint2, and Mint3 (X11 alpha, X11 beta, and X11 gamma), and multiple novel interactors for these proteins, with the finding that transcriptional coactivators are highly represented among these interactors. Furthermore, we show that Mint3 interaction with a set of the transcriptional coactivators leads to nuclear localization and transactivation, whereas interaction of the same set with Mint1 or Mint2 prevents nuclear localization and transactivation. These results define new mediators of the signal transduction network mediated by APP.
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