Mouse R-Spondin 1 Antibody

(5 citations)   
  • Species Reactivity
    Mouse
  • Specificity
    Detects mouse R-Spondin 1 in direct ELISAs and Western blots. In direct ELISAs, approximately 60% cross‑reactivity with recombinant human R-Spondin 1 is observed and less than 5% cross-reactivity with recombinant mouse (rm) R-Spondin 3 and rmR-Spondin 4 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant mouse R-Spondin 1 (R&D Systems, Catalog # 3474-RS)
    Ser21-Gly209
    Accession # Q9Z132
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Mouse R-Spondin 1 (Catalog # 3474-RS)
  • Immunohistochemistry
    5-15 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Immunohistochemistry
R‑Spondin 1 in Mouse Ovary. R‑Spondin 1 was detected in immersion fixed frozen sections of E13.5 mouse ovary using Goat Anti-Mouse R‑Spondin 1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3474) at 10 µg/mL overnight at 4 °C. Tissue was stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
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 belongs to the R-Spondin family (1, 2). R-Spondins share around 40% aa identity. All 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 (amino acids (aa) 34 - 135) 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). R-Spondin 1 contains one potential N-glycosylation site. Over aa 21 - 209, mouse R-Spondin 1 shares 98%, 94%, 94%, 93%, 92% and 88% aa identity with rat, human, horse, cow, goat and dog 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 (6, 7). Disruption is also associated with palmoplantar keratosis (6, 7). Postnatally, R-Spondin 1 is expressed by neuroendocrine cells in the intestine, adrenal gland and pancreas, and by epithelia in kidney and prostate (8). Injection of recombinant R-Spondin 1 in mice causes activation of beta -catenin and proliferation of intestinal crypt epithelial cells, and ameliorates experimental colitis (8, 9). R-Spondin 1 appears to regulate Wnt/ beta -catenin by competing with the Wnt antagonist DKK-1 for binding to the Wnt co-receptor, Kremen (10). This competition reduces internalization of DKK-1/LRP-6/Kremen complexes (10). Reports differ on whether R‑Spondin 1 binds LRP-6 directly (10 - 12).

  • References:
    1. Lowther, W. et al. (2005) J. Virol. 79:10093.
    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. Tomaselli, S. et al. (2008) Hum. Mutat. 29:220.
    7. Parma, P. et al. (2006) Nat. Genet. 38:1304.
    8. Kim, K-A. et al. (2005) Science 309:1256.
    9. Zhao, J. et al. (2007) Gastroenterology 132:1331.
    10. Binnerts, M.E. et al. (2007) Proc. Natl. Acad. Sci. USA 104:14700.
    11. Nam, J-S. et al. (2006) J. Biol. Chem. 281:13247.
    12. 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.

5 Citations: Showing 1 - 5
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Species
Applications
Sample Type
  1. RSPOs facilitated HSC activation and promoted hepatic fibrogenesis
    Authors: X Yin, H Yi, L Wang, W Wu, X Wu, L Yu
    Oncotarget, 2016;7(39):63767-63778.
    Species: Mouse
    Sample Type: Whole Tissue
    Application: IHC paraffin embedded
  2. R-spondin 1/dickkopf-1/beta-catenin machinery is involved in testicular embryonic angiogenesis.
    Authors: Caruso M, Ferranti F, Corano Scheri K, Dobrowolny G, Ciccarone F, Grammatico P, Catizone A, Ricci G
    PLoS ONE, 2015;10(4):e0124213.
    Species: Mouse
    Sample Type: Cell Lysates
    Application: WB
  3. Bone marrow stromal cell transplantation mitigates radiation-induced gastrointestinal syndrome in mice.
    Authors: Saha S, Bhanja P, Kabarriti R
    PLoS ONE, 2012;6(9):e24072.
    Species: Mouse
    Sample Type: Serum
    Application: WB
  4. R-spondin1 deficiency in mice improves glycaemic control in association with increased beta cell mass.
    Authors: Wong VS, Oh AH, Chassot AA, Chaboissier MC, Brubaker PL
    Diabetologia, 2011;54(7):1726-34.
    Species: Mouse
    Sample Type: Tissue Homogenates
    Application: WB
  5. Human RSPO1/R-spondin1 is expressed during early ovary development and augments beta-catenin signaling.
    Authors: Tomaselli S, Megiorni F, Lin L, Mazzilli MC, Gerrelli D, Majore S, Grammatico P, Achermann JC
    PLoS ONE, 2011;6(1):e16366.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
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