RSPO3 Polyclonal Antibody

domain:The FU repeats are required for activation and stabilization of beta-catenin.,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.,miscellaneous:Upon injection into mice, it induces rapid onset of crypt cell proliferation involving beta-catenin stabilization. It also displays efficacy in a model of chemotherapy-induced intestinal mucositis.,similarity:Belongs to the R-spondin family.,similarity:Contains 1 TSP type-1 domain.,similarity:Contains 2 FU (furin-like) repeats.,subunit: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.,tissue specificity:Ubiquitously expressed. Expressed at higher level in placenta, small intestine, fetal thymus and lymph node.,