Article
Wnt signaling through inhibition of β-catenin degradation in an intact Axin1 complex.
Cell - 8 Jun 2012
Li Vivian S W, Ng Ser Sue, Boersema Paul J, Low Teck Y, Karthaus Wouter R, Gerlach Jan P, Mohammed Shabaz, Heck Albert J R, Maurice Madelon M, Mahmoudi Tokameh, Clevers Hans
Abstract excerpt
Degradation of cytosolic β-catenin by the APC/Axin1 destruction complex represents the key regulated step of the Wnt pathway. It is incompletely understood how the Axin1 complex exerts its Wnt-regulated function. Here, we examine the mechanism of Wnt signaling under endogenous levels of the Axin1 complex. Our results demonstrate that β-catenin is not only phosphorylated inside the Axin1 complex, but also...
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