Cysteine-rich and single thrombospondin domain-containing protein 3 ; Cristin-3 ; Roof plate-specific spondin-1
Categories
Elisa
Function
Activator of the beta-catenin signaling cascade, leading to TCF-dependent gene activation. Acts both in the canonical Wnt/beta-catenin-dependent pathway, possibly via a direct interaction with Wnt proteins, and in a Wnt-independent beta catenin pathway through a receptor signaling pathway that may not use frizzled/LRP receptors. Acts as a ligand for frizzled FZD8 and LRP6. May negatively regulate the TGF-beta pathway. Has a essential roles in ovary determination.
Specificity
Natural and recombinant Mouse R-spondin-1
Subcellular Location
Secreted Nucleus May also localize in the nucleus according to PubMed:14732490.
Interacts with the extracelular domain of FZD8 and LRP6. It however does not form a ternary complex with FZD8 and LRP6. Interacts with WNT1. Binds heparin.