Recombinant Human R-spondin-3(RSPO3)

Code CSB-YP887154HU
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Source Yeast
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Code CSB-EP887154HU
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Source E.coli
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Code CSB-EP887154HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP887154HU
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Source Baculovirus
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Code CSB-MP887154HU
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names RSPO3
Uniprot No. Q9BXY4
Alternative Names CRISTIN1; hPWTSR; hRspo3; Protein with TSP type-1 repeat; PWTSR; R-spondin 3 homolog; R-spondin-3 [Precursor]; R-spondin-3; Roof plate specific spondin-3; Roof plate-specific spondin-3; RSPO3; RSPO3_HUMAN; Thrombospondin type I domain containing 2; Thrombospondin type-1 domain-containing protein 2; THSD2
Species Homo sapiens (Human)
Expression Region 22-272
Protein Length Full Length of Mature Protein
Tag Info The following tags are available.
N-terminal His-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

Activator of the canonical Wnt signaling pathway by acting as a ligand for LGR4-6 receptors, which acts as a key regulator of angiogenesis. Upon binding to LGR4-6 (LGR4, LGR5 or LGR6), LGR4-6 associate with phosphorylated LRP6 and frizzled receptors that are activated by extracellular Wnt receptors, triggering the canonical Wnt signaling pathway to increase expression of target genes. Also regulates the canonical Wnt/beta-catenin-dependent pathway and non-canonical Wnt signaling by acting as an inhibitor of ZNRF3, an important regulator of the Wnt signaling pathway. Acts as a ligand for frizzled FZD8 and LRP6. May negatively regulate the TGF-beta pathway. Acts as a key regulator of angiogenesis by controlling vascular stability and pruning: acts by activating the non-canonical Wnt signaling pathway in endothelial cells. Can also amplify Wnt signaling pathway independently of LGR4-6 receptors, possibly by acting as a direct antagonistic ligand to RNF43 and ZNRF3.
Gene References into Functions
  1. Knockdown of RSPO3 resulted in significantly increased mRNA expression levels of RUNX2, ALP and OCN and no effects on the proliferation of human adipose-derived stem cells. PMID: 28220828
  2. For liver transplant-free survival, a genome-wide significant signal was identified and expression of the candidate gene RSPO3 was demonstrated in key liver-resident effector cells and may play a role in primary sclerosing cholangitis disease progression. PMID: 28779025
  3. The present study identified RSPO fusion transcripts, including three novel transcripts, in one-third of colorectal Traditional serrated adenoma (TSA) and showed that PTPRK-RSPO3 fusions were the predominant cause of RSPO overexpression in colorectal TSA. PMID: 28543708
  4. RSPOs facilitate HSC activation and promote liver fibrogenesis by enhancing the Wnt pathway PMID: 27572318
  5. Colorectal cancer cell lines identified VACO6 cells as a carrier of a canonical PTPRK(e1)-RSPO3(e2) fusion; cell line displayed marked in vitro and in vivo sensitivity to WNT blockade by the porcupine inhibitor LGK974. Long-term treatment of VACO6 cells with LGK974 led to the emergence of a resistant population carrying two frameshift deletions of the WNT pathway inhibitor AXIN1, with consequent protein loss. PMID: 28100566
  6. Using C-mannosylation-defective Rspo3 mutant-overexpressing cell lines, we found that C-mannosylation of Rspo3 promotes its secretion and activates Wnt/beta-catenin signaling. PMID: 27350215
  7. High RSPO3 expression is associated with breast cancer. PMID: 26735887
  8. A genome-wide association study of bone mineral density (BMD) found a new BMD locus that harbors the PTCH1 gene, that associates with reduced spine BMD and the RSPO3 associates with increased spine BMD. PMID: 26733130
  9. results suggest that the expression of RSPO fusion transcripts is related to a subset of colorectal cancers arising in the Japanese population PMID: 24847761
  10. using RNA-seq data, identification of multiple fusion transcripts including recurrent gene fusions involving R-spondin family members RSPO2 and RSPO3 that together occur in 10% of colon tumours PMID: 22895193
  11. the gene is a novel member of thrombospondin type I repeat supergene family (hPWTSR) PMID: 12463421
  12. a polymorphism in thrombospondin subtly but significantly sensitizes the calcium-binding repeats to removal of Ca2+ and thermal denaturation PMID: 12643280

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Subcellular Location Secreted.
Protein Families R-spondin family
Tissue Specificity Ubiquitously expressed. Expressed at higher level in placenta, small intestine, fetal thymus and lymph node. Highly expressed in endothelial cells.
Database Links

HGNC: 20866

OMIM: 610574

KEGG: hsa:84870

STRING: 9606.ENSP00000349131

UniGene: Hs.135254

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7505 Fannin St. Ste 610-312, Houston, TX 77054, USA
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