Recombinant Mouse Thrombospondin-1 Protein, CF

Catalog # Availability Size / Price Qty
7859-TH-050
Product Details
Citations (3)
FAQs
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Recombinant Mouse Thrombospondin-1 Protein, CF Summary

Purity
>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by the ability of the immobilized protein to support the adhesion of SVEC4‑10 mouse vascular endothelial cells. The ED50 for this effect is 0.1-0.5 μg/mL.
Source
Mouse myeloma cell line, NS0-derived mouse Thrombospondin-1 protein
Mouse Thrombospondin-1
(Asn19-Ser1171)
Accession # NP_035710
GGGSGGGSGGGS 6-His tag
N-terminus C-terminus
Accession #
N-terminal Sequence
Analysis
Starts at Asn19
Predicted Molecular Mass
129 kDa
SDS-PAGE
130-155 kDa, reducing conditions

Product Datasheets

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.

7859-TH

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in 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.
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Background: Thrombospondin-1

Thrombospondin‑1 (TSP‑1) is a 150‑180 kDa calcium‑sensitive protein that is secreted as a disulfide‑linked homotrimer. Within the Thrombospondin family, TSP‑2 is also homotrimeric, while TSP-3, -4, and -5/COMP are pentameric. TSP‑1 regulates a wide range of cellular functions including their interactions with other cells and with the extracellular matrix (ECM). TSP-1 contains an N‑terminal Laminin G‑like globular domain, an extended central region with one vWF‑C domain, 3 TSP type 1 repeats, 3 EGF‑like domains, and 8 TSP type‑3 repeats, and a globular C‑terminal lectin domain. Distinct regions of TSP‑1 have been associated with binding to particular ECM or cellular molecules (1, 2). Mature mouse TSP‑1 shares 95% and 99% amino acid sequence identity with human and rat TSP‑1, respectively. TSP‑1 counteracts the angiogenic, hypotensive, and anti‑thrombotic effects of nitric oxide (NO) (3). It binds and neutralizes VEGF, blocks VEGF R2 signaling on vascular endothelial cells (EC), and destabilizes adhesive contacts between EC (4‑6). TSP‑1’s actions on vascular smooth muscle cells support arterial tone and blood pressure in the presence of vasodilatory stimulation (7). It is released from activated platelets and enhances platelet aggregation and adhesion (8). TSP-1 also plays an important role in wound repair and tissue fibrosis by binding latent TGF‑beta and inducing release of the active cytokine from the latency associated peptide (LAP) (9, 10). TSP‑1 dampens adaptive immune responses by inducing the differentiation of regulatory T cells and inhibiting TCR signaling (11, 12). In the nervous system, it promotes excitatory synapse formation (13, 14) and supports the integration of neural progenitor cells into the olfactory bulb (15). In addition, TSP‑1 is released by apoptotic cells and promotes macrophage-mediated debris clearance (16).

References
  1. Murphy-Ullrich, J.E. and R.V. Iozzo (2012) Matrix Biol. 31:152.
  2. Laherty, C.D. et al. (1992) J. Biol. Chem. 267:3274.
  3. Roberts, D.D. et al. (2012) Matrix Biol. 31:162.
  4. Gupta, K. et al. (1999) Angiogenesis 3:147.
  5. Kaur, S. et al. (2010) J. Biol. Chem. 285:38923.
  6. Garg, P. et al. (2011) Am. J. Physiol. Lung Cell. Mol. Physiol. 301:L79.
  7. Isenberg, J.S. et al. (2009) Matrix Biol. 28:110.
  8. Isenberg, J.S. et al. (2008) Blood 111:613.
  9. Schultz-Cherry, S. et al. (1994) J. Biol. Chem. 269:26775.
  10. Sweetwyne, M.T. and J.E. Murphy-Ullrich (2012) Matrix Biol. 31:178.
  11. Grimbert, P. et al. (2006) J. Immunol. 177:3534.
  12. Kaur, S. et al. (2011) J. Biol. Chem. 286:14991.
  13. Xu, J. et al. (2010) Nat. Neurosci. 13:22.
  14. Eroglu, C. et al. (2009) Cell 139:380.
  15. Blake, S.M. et al. (2008) EMBO J. 27:3069.
  16. Moodley, Y. et al. (2003) Am. J. Pathol. 162:771.
Entrez Gene IDs
7057 (Human); 21825 (Mouse)
Alternate Names
THBS; THBS1; THBS-1; thrombospondin 1; Thrombospondin1; Thrombospondin-1; thrombospondin-1p180; TSP-1; TSP1thrombospondin-1; TSPTSP-1

Citations for Recombinant Mouse Thrombospondin-1 Protein, CF

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.

3 Citations: Showing 1 - 3
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  1. Embryonic Stem Cell-Derived Peripheral Auditory Neurons Form Neural�Connections with Mouse Central Auditory Neurons In�Vitro via the�?2?1 Receptor
    Authors: Z Liu, Y Jiang, X Li, Z Hu
    Stem Cell Reports, 2018;0(0):.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Thrombospondin-1 signaling through CD47 inhibits cell cycle progression and induces senescence in endothelial cells
    Cell Death Dis, 2016;7(9):e2368.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Photodynamic therapy-mediated cancer vaccination enhances stem-like phenotype and immune escape, which can be blocked by thrombospondin-1 signaling through CD47 receptor protein.
    Authors: Zheng Y, Zou F, Wang J, Yin G, Le V, Fei Z, Liu J
    J Biol Chem, 2015;290(14):8975-86.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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