DKK promotes clathrin-dependent internalization of LRP6

Stable Identifier
R-HSA-5368586
Type
Reaction [omitted]
Species
Homo sapiens
Compartment
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Binding of DKK1 to LRP6 induces the clathrin-mediated endocytosis of LRP6, preventing the WNT3-dependent phosphorylation of LRP and thereby attenuating WNT signaling (Sakane et al, 2010; Yamamoto et al, 2008). The DKK:LRP:KRM complex traffics to the early endosome in a RAB5-dependent manner. The LRP receptor can subsequently recycle back to the plasma membrane in a RAB11-dependent manner, while DKK may be degraded in the lysosome (Sakane et al, 2010)

Literature References
PubMed ID Title Journal Year
18606139 Wnt3a and Dkk1 regulate distinct internalization pathways of LRP6 to tune the activation of beta-catenin signaling

Yamamoto, H, Yamamoto, H, Sakane, H, Michiue, T, Kikuchi, A

Dev. Cell 2008
20053636 LRP6 is internalized by Dkk1 to suppress its phosphorylation in the lipid raft and is recycled for reuse

Sakane, H, Yamamoto, H, Kikuchi, A

J. Cell. Sci. 2010
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