Recombinant Mouse R-Spondin 1 (CHO-expressed) Protein, CF

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Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The typical ED50 is 8-40 ng/mL in the presence of 5 ng/mL Recombinant Mouse Wnt‑3a (1324-WN).

Product Details

Summary
Reactivity MuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

Order Details

Recombinant Mouse R-Spondin 1 (CHO-expressed) Protein, CF Summary

Details of Functionality
Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The typical ED50 is 8-40 ng/mL in the presence of 5 ng/mL Recombinant Mouse Wnt‑3a (Catalog # 1324-WN).
Source
Chinese Hamster Ovary cell line, CHO-derived mouse R-Spondin 1 protein
Met1-Gln265
Accession #
N-terminal Sequence
Ser21
Protein/Peptide Type
Recombinant Proteins
Gene
Rspo1
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.01 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
Theoretical MW
27 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
40-43 kDa, reducing conditions
Publications
Read Publications using
7150-RS/CF in the following applications:

Packaging, Storage & Formulations

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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS. *1 mg pack size (01M) is supplied as a 0.2 µm filtered solution in PBS.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 100 μg/mL in PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Mouse R-Spondin 1 (CHO-expressed) Protein, CF

  • 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

Background

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 other R-Spondin family members (1, 2). All R-Spondins regulate Wnt/ beta-Catenin signaling but have distinct expression patterns (1-3). R-Spondin 1 competes with the Wnt antagonist DKK-1 for binding to the Wnt co-receptors, Kremen and LRP-6, reducing their DKK-1-mediated internalization (4). However, reports are mixed on whether R-Spondin 1 binds LRP-6 directly (4-6). R-Spondin 1 is expressed in early development at the roof plate boundary and is thought to contribute to dorsal neural tube development (3, 7). 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). Mutations in R-Spondin 1 are also linked with palmoplantar keratoderma, abnormal thickening of the skin on the palms of the hands and soles of the feet (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). Interest in R-Spondin 1 as a cell culture supplement has grown with the expansion of the organoid field. R-Spondin 1 is widely used in organoid cell culture workflows as a vital component that promotes both growth and survival of 3D organoids (11). Structurally similar to 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, 12). A putative nuclear localization signal at the C-terminus may allow some expression in the nucleus (13). 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, within aa 21‑209.
  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. Binnerts, M.E. et al. (2007) Proc. Natl. Acad. Sci. USA 104:14700.
  5. Nam, J.-S. et al. (2006) J. Biol. Chem. 281:13247.
  6. Wei, Q. et al. (2007) J. Biol. Chem. 282:15903.
  7. Kamata, T. et al. (2004) Biochim. Biophys. Acta 1676:51.
  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. Drost and Clevers. (2018) Nature Reviews Cancer 18:407.
  12. Kazanskaya, O. et al. (2004) Dev. Cell 7:525.
  13. Tomaselli, S. et al. (2008) Hum. Mutat. 29:220.

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Publications for R-Spondin 1 (7150-RS/CF)(8)

We have publications tested in 2 confirmed species: Human, Mouse.

We have publications tested in 2 applications: Bioassay, Cell Culture.


Filter By Application
Bioassay
(7)
Cell Culture
(1)
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Human
(1)
Mouse
(7)
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Showing Publications 1 - 8 of 8.
Publications using 7150-RS/CF Applications Species
Z Fu, JW Dean, L Xiong, MW Dougherty, KN Oliff, ZE Chen, C Jobin, TJ Garrett, L Zhou Mitochondrial transcription factor A in RORgammat+ lymphocytes regulate small intestine homeostasis and metabolism Nature Communications, 2021;12(1):4462. 2021 [PMID: 34294718] (Bioassay, Mouse) Bioassay Mouse
K Dunbar, A Valanciute, A Lima, PF Vinuela, T Jamieson, V Rajasekara, J Blackmur, AM Ochocka-Fo, A Guazzelli, P Cammareri, MJ Arends, OJ Sansom, KB Myant, SM Farrington, MG Dunlop, FVN Din Aspirin Rescues Wnt-Driven Stem-like Phenotype in Human Intestinal Organoids and Increases the Wnt Antagonist Dickkopf-1 Cell Mol Gastroenterol Hepatol, 2020;0(0):. 2020 [PMID: 32971322] (Cell Culture, Mouse) Cell Culture Mouse
MW Dougherty, O Kudin, M Mühlbauer, J Neu, RZ Gharaibeh, C Jobin Gut microbiota maturation during early human life induces enterocyte proliferation via microbial metabolites BMC Microbiol., 2020;20(1):205. 2020 [PMID: 32652929] (Bioassay, Mouse) Bioassay Mouse
Y Cai, G Zhu, S Liu, Z Pan, M Quintero, CJ Poole, C Lu, H Zhu, B Islam, JV Riggelen, D Browning, K Liu, R Blumberg, N Singh, H Li Indispensable role of the Ubiquitin-fold modifier 1-specific E3 ligase in maintaining intestinal homeostasis and controlling gut inflammation Cell Discov, 2019;5(0):7. 2019 [PMID: 30701081] (Bioassay, Mouse) Bioassay Mouse
Y Eriguchi, K Nakamura, Y Yokoi, R Sugimoto, S Takahashi, D Hashimoto, T Teshima, T Ayabe, ME Selsted, AJ Ouellette Essential role of IFN-? in T cell-associated intestinal inflammation JCI Insight, 2018;3(18):. 2018 [PMID: 30232288] (Bioassay, Mouse) Bioassay Mouse
G Greicius, Z Kabiri, K Sigmundsso, C Liang, R Bunte, MK Singh, DM Virshup PDGFR? + pericryptal stromal cells are the critical source of Wnts and RSPO3 for murine intestinal stem cells in vivo Proc. Natl. Acad. Sci. U.S.A., 2018;0(0):. 2018 [PMID: 29559533] (Bioassay, Human) Bioassay Human
X Yin, H Yi, L Wang, W Wu, X Wu, L Yu RSPOs facilitated HSC activation and promoted hepatic fibrogenesis Oncotarget, 2016;7(39):63767-63778. 2016 [PMID: 27572318] (Bioassay, Mouse) Bioassay Mouse
Marie-Isabelle Garcia Trop2 marks transient gastric fetal epithelium and adult regenerating cells after epithelial damage Development, 2016;143(9):1452-63. 2016 [PMID: 26989172] (Bioassay, Mouse) Bioassay Mouse

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Bioinformatics

Gene Symbol Rspo1
Uniprot