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Recombinant Human R-spondin 1/RSPO1 (HEK293, His)

Cat. No. M15009
Recombinant Human R-spondin 1/RSPO1 (HEK293, His)  Structure
Synonym:

R-spondin-1; Roof plate-specific spondin-1

Size Price Availability Quantity
50ug USD 500  USD500 In stock
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Quality Control & Documentation
  • Purity: >95% , Endotoxin < 0.1 EU/μg
  • COA
  • MSDS
Biological Activity

R-Spondin-1 (Rspo-1) belongs to the Wnt regulator (Rspo) family. Currently, the family consists of four structurally related secretory ligands (Rspo 1-4), all containing basic residues and thrombospondin structural domains. R-Spondin-1 is a secreted activator protein containing two adjacent cysteine furan domains (aa 34-135) with a potential N-glycosylation site, followed by a thrombospondin (TSP1) motif (aa 147-207) and a region rich in basic residues (aa 211-263). Rspo-1 is expressed in certain regions of the developing central nervous system, as well as the adrenal gland, ovary, testis, thyroid and trachea. Rspo can interact with the Frizzled/LRP6 receptor complex to stimulate the Wnt/β-catenin signaling pathway.

Chemical Information
Solubility (25°C) Reconstitute the lyophilized powder in ddH2O or PBS to 100 μg/ml
Storage Stable for up to 12 months at -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 6 months at -20°C.
Conversion of different model animals based on BSA (PMID: 27057123)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

References

[1] Molong Qu, et al. Cell Res. Establishment of intestinal organoid cultures modeling injury-associated epithelial regeneration

[2] Gabriel Levin, et al. Front Bioeng Biotechnol. R-Spondin 1 (RSPO1) Increases Mouse Intestinal Organoid Unit Size and Survival in vitro and Improves Tissue-Engineered Small Intestine Formation in vivo

[3] Marta Dossena, et al. Stem Cell Res Ther. Standardized GMP-compliant scalable production of human pancreas organoids

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Keywords: Recombinant Human R-spondin 1/RSPO1 (HEK293, His) , R-spondin-1; Roof plate-specific spondin-1 supplier, Recombinant Proteins, inhibitors, activators


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