Recombinant Human SOST/Sclerostin Protein

Carrier Free

Catalog # Availability Size / Price Qty
1406-ST-025/CF

With Carrier

Catalog # Availability Size / Price Qty
1406-ST-025
R&D Systems Recombinant Proteins and Enzymes
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Citations (12)
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Reviews (1)

Recombinant Human SOST/Sclerostin Protein Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to inhibit Wnt-3a-induced alkaline phosphatase production by MC3T3‑E1 mouse preosteoblast cells. The ED50 for this effect is 1.5-6 μg/mL in the presence of 3 ng/mL Recombinant Mouse Wnt‑3a (Catalog # 1324-WN).
Source
Mouse myeloma cell line, NS0-derived human SOST/Sclerostin protein
Gln24-Tyr213, with an N-terminal 7-His tag
Accession #
N-terminal Sequence
Analysis
His
Structure / Form
Monomer
Predicted Molecular Mass
22.5 kDa
SDS-PAGE
28-32 kDa, reducing conditions

Product Datasheets

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1406-ST (with carrier)

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1406-ST/CF (carrier free)

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.

1406-ST

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 200 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
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.

1406-ST/CF

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
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.
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.
Reconstitution Calculator

Reconstitution Calculator

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Background: SOST/Sclerostin

SOST, also known as sclerostin, is a member of the cerberus/DAN family, a group of secreted glycoproteins characterized by a cysteine-knot motif. Cerberus/DAN family members are putative BMP antagonists, and include Dan, Cerberus, Gremlin, PRDC, and Caronte. While the overall sequence identity between members of the family is low, they have conserved spacing of six cysteine residues. Cerberus and dan have an additional cysteine residue used for dimerization; however, SOST does not and is secreted as a monomer. SOST was originally identified as an important regulator of bone homesotasis. Positional cloning studies identified that mutations in the SOST gene can cause sclerosteosis and van Buchem disease, bone dysplasia disorders characterized by progressive skeletal overgrowth. Significant levels of SOST expression are detected in bone, cartilage, kidney, and liver. SOST is expressed by osteoclasts in developing bones of mouse embryos, including both intramembranously forming skull bones and endochondrally forming long bones. SOST plays a physiological role as a negative regulator of bone formation by repressing BMP-induced osteogenesis. SOST has been shown to have unique ligand specificity, binding BMP-5, -6, and -7 with high affinity and BMP-2 and -4 with low affinity. This seems to be the first example of a BMP antagonist being localized to osteoclasts, cells derived from the hematopoietic lineage, that function to degrade bone matrix. Recombinant human SOST preparations from R&D Systems bind BMP-5 and BMP-6 in a functional ELISA. Human and mouse SOST share 88% amino acid identity (1-3).

References
  1. Kusu, N. et al. (2003) J. Biol. Chem. 278:24113.
  2. Balemans, W. et al. (2001) Hum. Mol. Genet. 10:537.
  3. Brunkow, M.E. et al. (2001) Am. J. Hum. Genet. 68:577.
Entrez Gene IDs
50964 (Human); 74499 (Mouse)
Alternate Names
sclerostin; SOST; VBCHsclerosteosis

Citations for Recombinant Human SOST/Sclerostin Protein

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.

12 Citations: Showing 1 - 10
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  1. Human cell surface-AAV interactomes identify LRP6 as blood-brain barrier transcytosis receptor and immune cytokine IL3 as AAV9 binder
    Authors: Shay, TF;Jang, S;Brittain, TJ;Chen, X;Walker, B;Tebbutt, C;Fan, Y;Wolfe, DA;Arokiaraj, CM;Sullivan, EE;Ding, X;Wang, TY;Lei, Y;Chuapoco, MR;Chou, TF;Gradinaru, V;
    Nature communications
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Lgr5-expressing secretory cells form a Wnt inhibitory niche in cartilage critical for chondrocyte identity
    Authors: Ruscitto, A;Chen, P;Tosa, I;Wang, Z;Zhou, G;Safina, I;Wei, R;Morel, MM;Koch, A;Forman, M;Reeve, G;Lecholop, MK;Wilson, M;Bonthius, D;Chen, M;Ono, M;Wang, TC;Yao, H;Embree, MC;
    Cell stem cell
    Species: Human, Porcine
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Characterization of sclerostin's response within white adipose tissue to an obesogenic diet at rest and in response to acute exercise in male mice
    Authors: N Kurgan, B Baranowski, J Stoikos, AJ MacNeil, VA Fajardo, REK MacPherson, P Klentrou
    Frontiers in Physiology, 2023-01-04;13(0):1061715.
    Species: N/A
    Sample Types: Buffer
    Applications: Western Blot
  4. A Versatile Macromer-Based Glycosaminoglycan (sHA3) Decorated Biomaterial for Pro-Osteogenic Scavenging of Wnt Antagonists
    Authors: M Gronbach, F Mitrach, S Möller, S Rother, S Friebe, SG Mayr, M Schnabelra, V Hintze, MC Hacker, M Schulz-Sie
    Pharmaceutics, 2020-10-29;12(11):.
    Species: Human
    Sample Types: Protein
    Applications: Surface Plasmon Resonance
  5. Vitamin D-regulated osteocytic sclerostin and BMP2 modulate uremic extraskeletal calcification
    Authors: L Nguyen-Yam, KI Tanaka, R St-Arnaud, D Goltzman
    JCI Insight, 2019-07-11;4(13):.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay
  6. Effect of TNF-α-Induced Sclerostin on Osteocytes during Orthodontic Tooth Movement
    Authors: F Ohori, H Kitaura, A Marahleh, A Kishikawa, S Ogawa, J Qi, WR Shen, T Noguchi, Y Nara, I Mizoguchi
    J Immunol Res, 2019-06-24;2019(0):9716758.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  7. Osteocyte-Intrinsic TGF-? Signaling Regulates Bone Quality through Perilacunar/Canalicular Remodeling
    Authors: NS Dole, CM Mazur, C Acevedo, JP Lopez, DA Monteiro, TW Fowler, B Gludovatz, F Walsh, JN Regan, S Messina, DS Evans, TF Lang, B Zhang, RO Ritchie, KS Mohammad, T Alliston
    Cell Rep, 2017-11-28;21(9):2585-2596.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  8. Sclerostin Promotes Bone Remodeling in the Process of Tooth Movement
    Authors: R Shu, D Bai, T Sheu, Y He, X Yang, C Xue, Y He, M Zhao, X Han
    PLoS ONE, 2017-01-12;12(1):e0167312.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  9. Sclerostin regulates release of bone mineral by osteocytes by induction of carbonic anhydrase 2.
    Authors: Kogawa M, Wijenayaka A, Ormsby R, Thomas G, Anderson P, Bonewald L, Findlay D, Atkins G
    J Bone Miner Res, 2013-12-01;28(12):2436-48.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  10. 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, 2012-07-26;487(7408):505-9.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  11. Altered skeletal expression of sclerostin and its link to radiographic progression in ankylosing spondylitis.
    Authors: Appel H, Ruiz-Heiland G, Listing J, Zwerina J, Herrmann M, Mueller R, Haibel H, Baraliakos X, Hempfing A, Rudwaleit M, Sieper J, Schett G
    Arthritis Rheum., 2009-11-01;60(11):3257-62.
    Applications: ELISA Developmet
  12. Localization of SOST/sclerostin in cementocytes in vivo and in mineralizing periodontal ligament cells in vitro.
    Authors: Jager A, Gotz W, Lossdorfer S, Rath-Deschner B
    J. Periodont. Res., 2009-09-23;45(2):246-54.
    Species: Human
    Sample Types:
    Applications: Western Blot

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Recombinant Human SOST/Sclerostin Protein
By Anonymous on 03/30/2018
Application: In vitro bioactivity in cell culture