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Recombinant Human R-Spondin 1 Protein

  (28 citations)
(1 Review)     
Datasheet / CoA / SDS
Product Details
Citations (28)
FAQs
Reviews
  • Purity
    >90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
  • Endotoxin Level
    <0.10 EU per 1 μg of the protein by the LAL method.
  • Activity
    Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The ED50 for this effect is 1-4 ng/mL in the presence of 5 ng/mL Recombinant Mouse Wnt‑3a (Catalog # 1324-WN).
  • Source
    Chinese Hamster Ovary cell line, CHO-derived human R-Spondin 1 protein
    Arg31-Ala263
  • Accession #
    Q2MKA7
  • N-terminal Sequence
    Analysis
    Arg31
  • Predicted Molecular Mass
    25.6 kDa
  • SDS-PAGE
    39 kDa, reducing conditions
Product Datasheets
Product Datasheet

COA

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SDS
Carrier Free
What does CF mean?
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
4645-RS
 
4645-RS/CF
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
 
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in PBS containing at least 0.1% human or bovine serum albumin.
 
Reconstitution Reconstitute at 100 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
 
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
  
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Data Images
Bioactivity

Bioactivity R-Spondin 1 [Unconjugated]
click image to view larger
Recombinant Human R-Spondin 1 (Catalog # 4645-RS), in the presence of Recombinant Mouse Wnt‑3a (Catalog # 1324-WN; 5 ng/mL), induces activation of beta-catenin in HEK293T cells measured using the Topflash assay (blue). The activity is approximately 7-fold greater than the competitor's R-Spondin 1 (red).
SDS-PAGE

SDS-PAGE R-Spondin 1 [Unconjugated]
click image to view larger
1 µg/lane of Recombinant Human
R-Spondin 1 was resolved with SDS-PAGE and visualized by silver staining under reducing (R) conditions, showing a single band at 39 kDa.
Background: R-Spondin 1

R-Spondin 1 (RSPO1, Roof plate-specific Spondin 1), also known as cysteine-rich and single thrombospondin domain containing protein 3 (Cristin 3), is a 27 kDa secreted protein that shares ~40% amino acid (aa) identity with three otherR-Spondin family members (1, 2). All R-Spondins regulate Wnt/ beta -catenin signaling, but have distinct expression patterns (1-3). Like other R-Spondins, R-Spondin 1 contains two adjacent cysteine-rich furin-like domains (aa 34-135) with one potential
N-glycosylation site, followed by a thrombospondin (TSP-1) motif (aa 147-207) and a region rich in basic residues (aa 211-263). Only the furin-like domains are needed for beta -catenin stabilization (2, 4). A putative nuclear localization signal at the C-terminus may allow some expression in the nucleus (5). Potential isoforms of 200 and 236 aa have an alternate, shorter N-terminus or are missingaa 146-208, respectively (6). Over aa 21-263, human R-Spondin 1 shares 89%, 87%, 92%, 91%, 91% and 89% aa identity with mouse, rat, equine, canine, caprine and bovine RSPO-1, respectively. R-Spondin 1 is expressed in early development at the roof plate boundary and is thought to contribute to dorsal neural tube development (3, 5). In humans, rare disruptions of the R-Spondin 1 gene are associated with tendencies for XX sex reversal (phenotypic male) or hermaphroditism, indicating a role for R-Spondin 1 in gender-specific differentiation (7, 8). Disruption is also associated with palmoplantar keratosis (7, 8). Postnatally,R-Spondin 1 is expressed by neuroendocrine cells in the intestine, adrenal gland and pancreas, and by epithelia in kidney and prostate (9). Injection of recombinant R-Spondin 1 in mice causes activation of beta -catenin and proliferation of intestinal crypt epithelial cells, and ameliorates experimental colitis (9, 10). R-Spondin 1 regulates Wnt/ beta -catenin by competing with the Wnt antagonist DKK-1 for binding to the Wnt co-receptors, Kremen and LRP-6, reducing their DKK-1-mediated internalization (11). Reports differ on whether R-Spondin 1 binds LRP-6 directly (11-13).

  • References:
    1. Chen, J-Z. et al. (2002) Mol. Biol. Rep. 29:287.
    2. Kim, K.-A. et al. (2006) Cell Cycle 5:23.
    3. Nam, J.-S. et al. (2007) Gene Expr. Patterns 7:306.
    4. Kazanskaya, O. et al. (2004) Dev. Cell 7:525.
    5. Kamata, T. et al. (2004) Biochim. Biophys. Acta 1676:51.
    6. Entrez accession # EAX07331, ABA54598.
    7. Tomaselli, S. et al. (2008) Hum. Mutat. 29:220.
    8. Parma, P. et al. (2006) Nat. Genet. 38:1304.
    9. Kim, K.-A. et al. (2005) Science 309:1256.
    10. Zhao, J. et al. (2007) Gastroenterology 132:1331.
    11. Binnerts, M.E. et al. (2007) Proc. Natl. Acad. Sci. USA 104:14700.
    12. Nam, J.-S. et al. (2006) J. Biol. Chem. 281:13247.
    13. Wei, Q. et al. (2007) J. Biol. Chem. 282:15903.
  • Long Name:
    Roof Plate-specific Spondin 1
  • Entrez Gene IDs:
    284654 (Human); 192199 (Mouse)
  • Alternate Names:
    Cristin 3; CRISTIN3; FLJ40906Roof plate-specific spondin-1; hRspo1; roof plate-specific spondin; RSPO; RSPO1; RSpondin 1; R-Spondin 1; R-spondin homolog (Xenopus laevis); RSPONDIN; R-spondin1; R-spondin-1
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

28 Citations: Showing 1 - 10
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Species
 Applications
 Sample Type
  1. R-spondins can potentiate WNT signaling without LGRs
    Authors: AM Lebensohn, R Rohatgi
    Elife, 2018;7(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  2. A surgical orthotopic organoid transplantation approach in mice to visualize and study colorectal cancer progression
    Authors: A Fumagalli, SJE Suijkerbui, H Begthel, E Beerling, KC Oost, HJ Snippert, J van Rheene, J Drost
    Nat Protoc, 2018;13(2):235-247.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  3. Cell-type specific potent Wnt signaling blockade by bispecific antibody
    Authors: NK Lee, Y Zhang, Y Su, S Bidlingmai, DW Sherbenou, KD Ha, B Liu
    Sci Rep, 2018;8(1):766.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  4. P2X7 receptor-dependent tuning of gut epithelial responses to infection
    Authors: SW Huang, C Walker, J Pennock, K Else, W Muller, MJ Daniels, C Pellegrini, D Brough, G Lopez-Cast, SM Cruickshan
    Immunol. Cell Biol, 2017;95(2):178-188.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: Bioassay
  5. Higher-Order Kidney Organogenesis from Pluripotent Stem Cells
    Authors: A Taguchi, R Nishinakam
    Cell Stem Cell, 2017;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  6. R-Spondin1/LGR5 Activates TGF? Signaling and Suppresses Colon Cancer Metastasis
    Authors: X Zhou, L Geng, D Wang, H Yi, G Talmon, J Wang
    Cancer Res., 2017;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  7. Ring finger protein 43 associates with gastric cancer progression and attenuates the stemness of gastric cancer stem-like cells via the Wnt-?/catenin signaling pathway
    Authors: Y Gao, A Cai, H Xi, J Li, W Xu, Y Zhang, K Zhang, J Cui, X Wu, B Wei, L Chen
    Stem Cell Res Ther, 2017;8(1):98.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  8. Directional delivery of RSPO1 by mesenchymal stem cells ameliorates radiation-induced intestinal injury
    Authors: W Chen, S Ju, T Lu, Y Xu, X Zheng, H Wang, Y Ge, S Ju
    Cytokine, 2017;95(0):27-34.
  9. Long-term culture-induced phenotypic difference and efficient cryopreservation of small intestinal organoids by treatment timing of Rho kinase inhibitor
    Authors: SH Han, S Shim, MJ Kim, HY Shin, WS Jang, SJ Lee, YW Jin, SS Lee, SB Lee, S Park
    World J. Gastroenterol, 2017;23(6):964-975.
    Species: Mouse
    Sample Type: Whole Cells
    Application: Bioassay
  10. Novel Bi-specific Domain Antibody to LRP6 Inhibits Wnt and R-spondin Ligand-induced Wnt Signaling and Tumor Growth
    Mol Cancer Res, 2016;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  11. PGE2 is a direct and robust mediator of anion/fluid secretion by human intestinal epithelial cells
    Sci Rep, 2016;6(0):36795.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  12. Intestinal enteroids model GUCY2C-dependent secretion induced by heat-stable enterotoxins
    Infect Immun, 2016;0(0):.
    Species: Human
    Sample Type: Whole Tissue
    Application: Bioassay
  13. Therapeutic Targeting of Tumor-Derived R-Spondin Attenuates beta-Catenin Signaling and Tumorigenesis in Multiple Cancer Types.
    Authors: Chartier C, Raval J, Axelrod F, Bond C, Cain J, Dee-Hoskins C, Ma S, Fischer M, Shah J, Wei J, Ji M, Lam A, Stroud M, Yen W, Yeung P, Cancilla B, O'Young G, Wang M, Kapoun A, Lewicki J, Hoey T, Gurney A
    Cancer Res, 2016;76(3):713-23.
    Species: Mouse
    Sample Type: In Vivo
    Application: Bioassay
  14. Development of Functional Microfold (M) Cells from Intestinal Stem Cells in Primary Human Enteroids.
    Authors: Rouch J, Scott A, Lei N, Solorzano-Vargas R, Wang J, Hanson E, Kobayashi M, Lewis M, Stelzner M, Dunn J, Eckmann L, Martin M
    PLoS ONE, 2016;11(1):e0148216.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  15. Characterization and propagation of tumor initiating cells derived from colorectal liver metastases: trials, tribulations and a cautionary note.
    Authors: James M, Howells L, Karmokar A, Higgins J, Greaves P, Cai H, Dennison A, Metcalfe M, Garcea G, Lloyd D, Berry D, Steward W, Brown K
    PLoS ONE, 2015;10(2):e0117776.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  16. Luminal microbes promote monocyte-stem cell interactions across a healthy colonic epithelium.
    Authors: Skoczek D, Walczysko P, Horn N, Parris A, Clare S, Williams M, Sobolewski A
    J Immunol, 2014;193(1):439-51.
    Species: Human
    Sample Type: Whole Tissue
    Application: Bioassay
  17. RSPO-LGR4 functions via IQGAP1 to potentiate Wnt signaling.
    Authors: Carmon K, Gong X, Yi J, Thomas A, Liu Q
    Proc Natl Acad Sci U S A, 2014;111(13):E1221-9.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  18. Inner ear hair cell-like cells from human embryonic stem cells.
    Authors: Ronaghi, Mohammad, Nasr, Marjan, Ealy, Megan, Durruthy-Durruthy, Robert, Waldhaus, Joerg, Diaz, Giovanni, Joubert, Lydia-Ma, Oshima, Kazuo, Heller, Stefan
    Stem Cells Dev, 2014;23(11):1275-84.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  19. Type I collagen as an extracellular matrix for the in vitro growth of human small intestinal epithelium.
    Authors: Jabaji Z, Brinkley G, Khalil H, Sears C, Lei N, Lewis M, Stelzner M, Martin M, Dunn J
    PLoS ONE, 2014;9(9):e107814.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  20. RSPO2-LGR5 signaling has tumour-suppressive activity in colorectal cancer.
    Authors: Wu C, Qiu S, Lu L, Zou J, Li W, Wang O, Zhao H, Wang H, Tang J, Chen L, Xu T, Sun Z, Liao W, Luo G, Lu X
    Nat Commun, 2014;5(0):3149.
  21. Intestinal subepithelial myofibroblasts support the growth of intestinal epithelial stem cells.
    Authors: Lei N, Jabaji Z, Wang J, Joshi V, Brinkley G, Khalil H, Wang F, Jaroszewicz A, Pellegrini M, Li L, Lewis M, Stelzner M, Dunn J, Martin M
    PLoS ONE, 2014;9(1):e84651.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: Bioassay
  22. Modulation of stemness in a human normal intestinal epithelial crypt cell line by activation of the WNT signaling pathway.
    Authors: Guezguez A, Pare F, Benoit Y, Basora N, Beaulieu J
    Exp Cell Res, 2014;322(2):355-64.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  23. Hippo pathway activity influences liver cell fate.
    Authors: Yimlamai D, Christodoulou C, Galli G, Yanger K, Pepe-Mooney B, Gurung B, Shrestha K, Cahan P, Stanger B, Camargo F
    Cell, 2014;157(6):1324-38.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: Bioassay
  24. Expansion and conversion of human pancreatic ductal cells into insulin-secreting endocrine cells.
    Authors: Lee J, Sugiyama T, Liu Y, Wang J, Gu X, Lei J, Markmann J, Miyazaki S, Miyazaki J, Szot G, Bottino R, Kim S
    Elife, 2013;2(0):e00940.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  25. ZNRF3 promotes Wnt receptor turnover in an R-spondin-sensitive manner.
    Authors: Hao HX, Xie Y, Zhang Y, Charlat O, Oster E, Avello M, Lei H, Mickanin C, Liu D, Ruffner H, Mao X, Ma Q, Zamponi R, Bouwmeester T, Finan PM, Kirschner MW, Porter JA, Serluca FC, Cong F
    Nature, 2012;485(7397):195-200.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  26. Widespread potential for growth-factor-driven resistance to anticancer kinase inhibitors.
    Authors: Wilson TR, Fridlyand J, Yan Y, Penuel E, Burton L, Chan E, Peng J, Lin E, Wang Y, Sosman J, Ribas A, Li J, Moffat J, Sutherlin DP, Koeppen H, Merchant M, Neve R, Settleman J
    Nature, 2012;487(7408):505-9.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  27. Role of Gadd45a in Wip1-dependent regulation of intestinal tumorigenesis.
    Cell Death Differ., 2012;19(11):1761-8.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  28. Directed differentiation of human pluripotent stem cells into intestinal tissue in vitro.
    Authors: Spence JR, Mayhew CN, Rankin SA
    Nature, 2011;470(7332):105-9.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
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Average Rating: 4 (Based on 1 review)

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  In vitro bioactivity in cell culture Anonymous 08/15/2017
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Summary

Application In vitro bioactivity in cell culture
Reason for Rating Protein performed as expected in assay

Other Experimental Details

Other Experimental Details Wnt3a biology and cell growth. Use HEK Wnt3a reporter cell line.

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