Human/Mouse R-Spondin 1 Antibody

Catalog # Availability Size / Price Qty
Product Details
Citations (1)
Supplemental Products

Human/Mouse R-Spondin 1 Antibody Summary

Species Reactivity
Human, Mouse
Detects human and mouse R-Spondin 1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody does not cross-react with recombinant human (rh) R-Spondin 2 or rhR-Spondin 3.
Monoclonal Mouse IgG2B Clone # 422407
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant human R-Spondin 1
Accession # NP_775911
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

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Recommended Concentration
Western Blot
1 µg/mL
Recombinant Human R-Spondin 1 (Catalog # 4645-RS)
Recombinant Mouse R-Spondin 1 (Catalog # 3474-RS)

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.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
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

RSPO-1 (roof plate-specific spondin; also R-spondin1 and cristin3) is a 39 kDa, heparin-binding member of the Cristin/R-spondin family of proteins. These molecules apparently are either retained intracellularly or secreted, where they activate the frizzled-LRP receptor pathway. Mature human RSPO-1 is 27 kDa and 243 amino acids (aa) in length. It contains a cysteine-rich furin repeat domain followed by a type I TSP domain. This form is apparently retained intracellularly. A presumably glycosylated, 30 kDa, 193 aa C-terminally truncated form is secreted and interacts with heparin. The secreted form of human RSPO-1 is 93% aa identical to secreted mouse RSPO-1.

Long Name
Roof Plate-specific Spondin 1
Entrez Gene IDs
284654 (Human); 192199 (Mouse); 102122369 (Cynomolgus Monkey)
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

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Citation for Human/Mouse R-Spondin 1 Antibody

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.

1 Citation: Showing 1 - 1

  1. 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 Types: Whole Cells
    Applications: ICC


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