R-spondin-2, also known as RSPO2, synergizes with Wnt to activate beta-catenin. RSPO2 is secreted proteins that regulate beta-catenin signaling. Activator of the beta-catenin signaling cascade leads to TCF-dependent gene activation. Action 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. Probably also acts as a ligand for frizzled and LRP receptors. The encoding gene Rspo2 was identified as a novel common integration site for the mouse mammary tumor virus in viral induced mouse mammary tumors. Rspo2 and Rspo2 / Wnt1 tumors contained many spindle cells, consistent with an epithelial-mesenchymal transformation phenotype. When Rspo2 and Rspo2 / Wnt1 tumor cells were transferred into naive mice, they exhibited greater metastatic activity than cells derived from Wnt1 tumors.
Product Name:
Human FTLS/RSPO2 Recombinant Protein (RPES1323)
Product Code:
RPES1323
Size:
5µg
Species:
Human
Expressed Host:
HEK293 Cells
Synonyms:
CRISTIN2
Accession:
Q6UXX9-1
Sequence:
Met 1-Gly 205, 186 Leu/Pro
Fusion tag:
C-Fc
Activity:
Measured by its ability to induce activation of ?-catenin response in a Topflash Luciferase assay using HEK293T human embryonic kidney cells.The ED50 for this effect is typically 10-60 ng/mL in the presence of 5 ng/mL recombinant mouse Wnt3a.
Endotoxin:
<1.0 EU per µg as determined by the LAL method.
Protein Construction:
A DNA sequence encoding the human RSPO2 (Q6UXX9-1) N-teminal fragment (Met 1-Gly 205, 186 Leu/Pro) was fused with the Fc region of human IgG1 at the C-terminus.
Purity:
> 90 % as determined by reducing SDS-PAGE.
Mol Mass:
48.3 kDa
AP Mol Mass:
50 kDa
Formulation:
Lyophilized from sterile PBS, pH 7.4
Shipping:
This product is provided as lyophilized powder which is shipped with ice packs.
Stability and Storage:
Lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.