Human CellExp™ R-Spondin 3 /RSPO3 (22-146), human recombinant

R-Spondin 3 /RSPO3 (22-146)

R-Spondin 3 (RSPO3), also called cysteine-rich and single thrombospondin domain containing-1 (CRISTIN1), Protein with TSP type-1 repeat (PWTSR), is a member of the R-Spondin protein family. R-spondins (RSPO) are a recently discovered secretory protein family with four members in human and mouse. Although all four RSPO proteins activate the canonical Wnt pathway, RSPO2 and RSPO3 are more potent than RSPO1, whereas RSPO4 is relatively inactive. RSPO-3 is expressed ubiquitously and expressed at higher level in placenta, small intestine, fetal thymus and lymph node. RSPO3 is the activator of the beta-catenin signaling cascade, leading to TCF-dependent gene activation. RSPO3 acts both in the canonical Wnt/beta-catenin-dependent pathway and in non-canonical Wnt signaling pathway, probably by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. RSPO3 also acts as a ligand for frizzled FZD8 and LRP6 and may negatively regulate the TGF-beta pathway.

N/A

This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 15.3 kDa. The predicted N-terminus is Gln 22. DTT-reduced Protein migrates as 18 kDa and 24 kDa due to different glycosylation.

RSPO3, CRISTIN1, PWTSR, THSD2

RSPO3, CRISTIN1, PWTSR, THSD2

84870

RSPO3

Human

Q9BXY4

Yes

HEK293 cells

≥95%

SDS-PAGE, N/A

N/A

Measured by its ability to induce activation of beta -catenin response in a Topflash Luciferase assay using HEK293T human embryonic kidney cells. The ED50 for this effect is typically 0.5 - 2.0 ng/ml in the presence of 5 ng/mL rmWnt-3a.

Measured by its ability to induce activation of beta -catenin response in a Topflash Luciferase assay using HEK293T human embryonic kidney cells. The ED50 for this effect is typically 0.5 - 2.0 ng/ml in the presence of 5 ng/mL rmWnt-3a.

N/A

N/A

-20°C

Gel Pack

Lyophilized

Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 µg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.

N/A

Centrifuge the vial prior to opening.

For Research Use Only! Not to be used in humans

Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.

Recombinants or rec. proteins

recombinants