| Literature DB >> 22688894 |
Abstract
In a recent issue of Nature, Hao et al. report an unexpected link between the secreted stem cell factor/Wnt agonist R-spondin and Wnt receptors through the transmembrane ZNRF3 protein, a RING finger ubiquitin ligase. ZNRF3 acts to turn over Frizzled and LRP6 receptors. R-spondin binds to ZNRF3, in addition to transmembrane LGR4/5 receptors, to antagonize degradation of the Wnt receptors by ZNRF3, thereby resulting in increased Frizzled and LRP6 levels and a greater Wnt response.Entities:
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Year: 2012 PMID: 22688894 PMCID: PMC3463273 DOI: 10.1038/cr.2012.91
Source DB: PubMed Journal: Cell Res ISSN: 1001-0602 Impact factor: 25.617