Cellular and Molecular Life Sciences

, Volume 67, Issue 15, pp 2551–2562

Regulation of Lrp6 phosphorylation


DOI: 10.1007/s00018-010-0329-3

Cite this article as:
Niehrs, C. & Shen, J. Cell. Mol. Life Sci. (2010) 67: 2551. doi:10.1007/s00018-010-0329-3


The Wnt/β-catenin signaling pathway plays important roles in embryonic development and tissue homeostasis, and is implicated in human disease. Wnts transduce signals via transmembrane receptors of the Frizzled (Fzd/Fz) family and the low density lipoprotein receptor-related protein 5/6 (Lrp5/6). A key mechanism in their signal transduction is that Wnts induce Lrp6 signalosomes, which become phosphorylated at multiple conserved sites, notably at PPSPXS motifs. Lrp6 phosphorylation is crucial to β-catenin stabilization and pathway activation by promoting Axin and Gsk3 recruitment to phosphorylated sites. Here, we summarize how proline-directed kinases (Gsk3, PKA, Pftk1, Grk5/6) and non-proline-directed kinases (CK1 family) act upon Lrp6, how the phosphorylation is regulated by ligand binding and mitosis, and how Lrp6 phosphorylation leads to β-catenin stabilization.


Wnt Lrp6 Phosphorylation Protein kinase Parathyroid hormone CK1 Gsk3 Ccny Cell cycle 

Copyright information

© Springer Basel AG 2010

Authors and Affiliations

  1. 1.Division of Molecular EmbryologyDKFZ-ZMBH Alliance, Deutsches KrebsforschungszentrumHeidelbergGermany
  2. 2.Division of Molecular Biology of the Cell IDKFZ-ZMBH Alliance, Deutsches KrebsforschungszentrumHeidelbergGermany

Personalised recommendations