RS1-HM101-100μg / 询价

RS1-HM101-500μg / 询价

RS1-HM101-500μgx2 / 询价

Human R spondin 1/RSPO1 Protein

产品信息(Product Info)

Recombinant Human R spondin 1/RSPO1 Protein is expressed from CHO with His tag at the C-Terminus.
It contains Arg31-Ala263 [Accession | Q2MKA7].

分子量大小(Molecular Weight)

The protein has a predicted MW of 27.3 kDa. Due to glycosylation, the protein migrates to 38-42 kDa based on Tris-Bis PAGE result.


> 95% as determined by Tris-Bis PAGE


Less than 0.05EU per μg by the LAL method.


Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.


Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.


-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3-6 months after reconstitution.
2-8°C for 2-7 days after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

产品数据(Assay Data)
Tris-Bis PAGE

Human R spondin 1 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.


Immobilized Human R spondin 1, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Anti-R spondin 1 Antibody, hFc Tag with the EC50 of 2.9ng/ml determined by ELISA (QC Test).


Immobilized Human R spondin 1, His Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Human RNF34, hFc Tag with the EC50 of 0.4μg/ml determined by ELISA.

Cell Based Assay

Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The ED50 for this effect is 1.0 - 10.0 ng/mL in the presence of 5 ng/mL recombinant Human Wnt Surrogate-Fc Fusion (WNT-HM23A) (QC Test).


The R-spondins are members of a superfamily of thrombospondin type 1 repeat (TSR-1)-containing proteins. The prototype member (discovered in 1971) was isolated from platelets that had been stimulated with thrombin, and was therefore designated 'thrombin-sensitive protein.


R-spondin-1; RSPO1; CRISTIN3; FLJ40906; RP11-566C13.1; RSPO; R-Spondin1


(1)Kamata T, Katsube K, Michikawa M, Yamada M, Takada S, Mizusawa H: R-spondin, a novel gene with thrombospondin type 1 domain, was expressed in the dorsal neural tube and affected in Wnts mutants. Biochim Biophys Acta. 2004, 1676: 51-62.