Thrombospondin-1 Antibody (899631R) [Unconjugated]

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Product Details

Summary
Reactivity MuSpecies Glossary
Applications ELISA
Clone
899631R
Clonality
Monoclonal
Host
Rat
Conjugate
Unconjugated

Order Details

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Catalog# & Formulation Size Price

Thrombospondin-1 Antibody (899631R) [Unconjugated] Summary

Additional Information
Recombinant Monoclonal Antibody.
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Thrombospondin‑1
Asn19-Ser1171
Accession # P35441
Specificity
Detects mouse Thrombospondin‑1 in direct ELISAs.
Source
N/A
Isotype
IgG2a
Clonality
Monoclonal
Host
Rat
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • ELISA

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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
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.
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

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

Alternate Names for Thrombospondin-1 Antibody (899631R) [Unconjugated]

  • THBS
  • THBS1
  • THBS-1
  • thrombospondin 1
  • Thrombospondin1
  • Thrombospondin-1
  • thrombospondin-1p180
  • TSP-1
  • TSP1thrombospondin-1
  • TSPTSP-1

Background

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).
  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.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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