Recombinant Human R-Spondin 2 Protein

(8 citations)   
  • Purity
    >90%, by SDS-PAGE under reducing conditions and visualized by silver stain.
  • Endotoxin Level
    <0.01 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 typical ED50 is 0.7-2.8 ng/mL in the presence of 5 ng/mL recombinant mouse Wnt-3a.
  • Source
    Mouse myeloma cell line, NS0-derived Gln22-Gly205, with a C-terminal 6-His tag
  • Accession #
  • N-terminal Sequence
    Analysis
    No results obtained: Gln22 predicted
  • Predicted Molecular Mass
    22 kDa
  • SDS-PAGE
    25-29 kDa, reducing conditions
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.
3266-RS
 
3266-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 200 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Reconstitution Reconstitute at 200 μg/mL in sterile 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
Recombinant R-Spondin 2 (Catalog # 3266‑RS) induces activation of beta -catenin response in a Topflash Luciferase assay using HEK293T human embryonic kidney cells. The ED50 for this effect is
0.7-2.8 ng/mL in the presence of 5 ng/mL of Recombinant Mouse Wnt‑3a (Catalog # 1324-WN).
1 µg/lane of Recombinant Human R‑Spondin 2 was resolved with SDS-PAGE and visualized by silver staining under reducing (R) conditions, showing a single band at 28 kDa.
Background: R-Spondin 2

Roof plate-specific Spondin 2 isoform 1 (R‑Spondin 2, RSPO2), also known as cysteine‑rich and single thrombospondin domain containing protein 2 (Cristin 2), is a 33 kDa secreted protein that belongs to the R-Spondin family (1‑3). The four R‑Spondins regulate Wnt/ beta -catenin signaling and overlap in expression and function (1‑3). Like other R‑Spondins, RSPO2 contains two adjacent cysteine‑rich furin-like domains (aa 90‑134) followed by a thrombospondin (TSP-1) motif (aa 144‑204) and a C-terminal region rich in basic residues (aa 207‑243). The basic region binds heparin and mediates cell surface retention and extracellular matrix attachment while the furin‑like domains are required for Wnt/ beta -catenin signaling (1, 3, 4). RSPO2 contains one potential N‑glycosylation site. Mature human RSPO2 shares 97‑98% aa identity with mouse, rat, equine, canine and bovine RSPO2 and ~40% aa identity with RSPO1, RSPO3 and RSPO4. Of the three reported splice isoforms of human R‑Spondin 2, isoform 2 lacks residues 1 ‑ 67 of isoform 1, while isoform 3 has a glycine substitution for residues 32‑95 of isoform 1 (5). Human RSPO2 is expressed in organs of endodermal origin in adults, including intestine and lung, and is down‑regulated in tumors of these tissues (1). In the embryonic mouse, RSPO2 expression is concentrated in the apical epidermal ridge, hippocampus, and developing muscle, teeth and bones (1, 6). Deletion of RSPO2 results in down‑regulation of Wnt activity in these areas, malformations of the facial skeleton and limbs, and respiratory failure at birth (7‑9). RSPO2 is an extracellular potentiator of Wnt/ beta -catenin signaling (3, 4). It functions at least in part by binding LRP‑6, stimulating its long-term phosphorylation and down‑regulating its internalization (3, 4). RSPO proteins, especially RSPO2 and RSPO3, also antagonize DKK1 activity by interfering with DKK1‑mediated LRP‑6 and Kremen association (10).

  • References:
    1. Kazanskaya, O. et al. (2004) Dev. Cell 7:525.
    2. Kim, K.-A. et al. (2006) Cell Cycle 5:23.
    3. Nam, J.-S. et al. (2006) J. Biol. Chem. 281:13247.
    4. Li, S-J. et al. (2009) Cell Signal. 21:916.
    5. Swiss-Prot Accession # Q6UXX9.
    6. Nam, J.-S. et al. (2007) Gene Expr. Patterns 7:306.
    7. Yamada, W. et al. (2009) Biochem. Biophys. Res. Commun. 381:453.
    8. Jin, Y.-R. et al. (2011) Dev. Biol. 352:1.
    9. Nam, J.-S. et al. (2007) Dev. Biol. 311:124.
    10. Kim, K.-A. et al. (2007) Mol. Biol. Cell 19:2588.
  • Long Name:
    Roof Plate-specific Spondin 2
  • Entrez Gene IDs:
    340419 (Human); 239405 (Mouse)
  • Alternate Names:
    Cristin 2; CRISTIN2; hRspo2; MGC35555; MGC43342; Roof plate-specific spondin-2; RSPO2; R-spondin 2 homolog (Xenopus laevis); RSpondin 2; R-Spondin 2; R-spondin-2
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.

8 Citations: Showing 1 - 8
Filter your results:

Species
Applications
Sample Type
  1. 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
  2. R-spondin 2 promotes acetylcholine receptor clustering at the neuromuscular junction via Lgr5
    Authors: Hiroaki Nakashima
    Sci Rep, 2016;6(0):28512.
    Species: Mouse
    Sample Type: Whole Cells
    Application: Bioassay
  3. Aberrantly expressed LGR4 empowers Wnt signaling in multiple myeloma by hijacking osteoblast-derived R-spondins
    Proc. Natl. Acad. Sci. U.S.A, 2016;0(0):.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
  4. 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.
  5. Interaction with both ZNRF3 and LGR4 is required for the signalling activity of R-spondin.
    Authors: Xie, Yang, Zamponi, Raffaell, Charlat, Olga, Ramones, Melissa, Swalley, Susanne, Jiang, Xiaomo, Rivera, Daniel, Tschantz, William, Lu, Bo, Quinn, Lisa, Dimitri, Chris, Parker, Jefferso, Jeffery, Doug, Wilcox, Sheri K, Watrobka, Mike, LeMotte, Peter, Granda, Brian, Porter, Jeffrey, Myer, Vic E, Loew, Andreas, Cong, Feng
    EMBO Rep, 2013;14(12):1120-6.
    Species: Human
    Sample Type: Whole Cells
    Application: cell culture
  6. 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
  7. 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
  8. The role of R-spondin2 in keratinocyte proliferation and epidermal thickening in keloid scarring.
    Authors: Chua AW, Ma D, Gan SU, Fu Z, Han HC, Song C, Sabapathy K, Phan TT
    J. Invest. Dermatol., 2011;131(3):644-54.
    Species: Human
    Sample Type: Whole Cells
    Application: Bioassay
Primary Antibodies
Description Application Cat# Citations Images  

His Tag Antibody

WB, Simple Western, Flow, AP, CyTOF-ready MAB050 26  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag HRP-conjugated Antibody

WB, Simple Western MAB050H 3  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag APC-conjugated Antibody

ICFlow IC050A  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag Biotinylated Antibody

WB BAM050 4  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag PE-conjugated Antibody

ICFlow IC050P 2  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag Antibody

WB, Flow, AP MAB050R  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag Alexa Fluor® 488-conjugated Antibody

ICFlow IC050G  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag PerCP-conjugated Antibody

ICFlow IC050C  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

His Tag Alexa Fluor® 700-conjugated Antibody

ICFlow IC050N  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Protein Purification Kits
Description Application Cat# Citations Images  

Histidine-tagged Protein Purification Resin

IP999 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Recombinant Proteins
Description Application Cat# Citations Images  

Recombinant Mouse Wnt-3a Protein, CF

BA, BA2 1324-WN/CF 113
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Recombinant Mouse Wnt-3a Protein

BA, BA2 1324-WN 113
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Have you used Recombinant Human R-Spondin 2 Protein?

Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.

Order Details

  • Formulations

Contact Information

Calculators

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

=
÷
R&D Systems Guarantee

Associated Pathways

Feedback

Customer Information