Thrombospondin-2 Antibody


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Reactivity HuSpecies Glossary
Applications WB

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Thrombospondin-2 Antibody Summary

Mouse myeloma cell line NS0-derived recombinant human Thrombospondin-2
Accession # P35442
Detects human Thrombospondin-2 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) Thrombospondin-1 and rhThrombospondin-4 is observed.
Immunogen affinity purified
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  • Western Blot 0.1 ug/mL
Read Publications using
AF1635 in the following applications:

Packaging, Storage & Formulations

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.
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.
No Preservative
Immunogen affinity purified
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.


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

Alternate Names for Thrombospondin-2 Antibody

  • THBS2
  • thrombospondin 2
  • Thrombospondin2
  • Thrombospondin-2
  • TSP-2
  • TSP2thrombospondin-2


Thrombospondin-2 (TSP-2) is a 150 kDa calcium-binding protein that modulates cellular interactions with extracellular matrix. Thrombospondin-1 and -2 constitute subgroup A thrombospondin family members and form disulfide-linked homotrimers, whereas Thrombospondin-3, -4, and -5/COMP constitute subgroup B and form homopentamers (1-4). The human TSP-2 cDNA encodes a 1172 amino acid (aa) precursor that includes an 18 aa signal sequence followed by an N-terminal heparin‑binding domain, an oligomerization motif, one vWF-C domain, three TSP type-1 repeats, three EGF-like repeats, seven TSP type-3 repeats, and a lectin-like TSP C‑terminal domain (5). Human TSP-2 shares 88-90% aa sequence identity with bovine, mouse, and rat TSP-2. Within the TSP type-3 repeats and TSP C‑terminal domain, human TSP-2 shares 80% aa sequence identity with human TSP-1 and approximately 60% aa sequence identity with human TSP-3, -4, and -5/COMP. TSP‑2 regulates collagen matrix formation by altering fibroblast behavior during development and in areas of tissue remodeling in the adult (6, 7). Trimerization of TSP-2 is required for the calcium-dependent cell attachment and spreading functions, while the heparin-binding domain is responsible for the destabilization of focal adhesion sites (8-10). The heparin-binding domain also mediates binding to Integrins alpha 3 beta 1 and alpha 6 beta 1 on microvascular endothelial cells (EC) and Integrin alpha 4 beta 1 on large blood vessel EC (11, 12). A fragment of TSP-2 (heparin-binding domain, oligomerization motif, and vWF-C domain) promotes EC survival, proliferation, and chemotaxis (11). Inclusion of the three TSP type-1 domains results in a molecule that inhibits VEGF-induced EC migration and vascular tube formation (13, 14). In vivo, full length TSP-2 blocks tumor angiogenesis and induces vascular EC apoptosis (13, 15). HPRG functions as an apparent decoy receptor by preventing interaction of TSP-2 with CD36 on macrophages and microvasculature EC (14). TSP-2 also binds MMP-2 and facilitates MMP-2 clearance by the scavenger receptor LRP (16).

  1. Elzie, C.A. and J.E. Murphy-Ullrich (2004) Int. J. Biochem. Cell Biol. 36:1090.
  2. Armstrong, L.C. and P. Bornstein (2003) Matrix Biol. 22:63.
  3. Murphy-Ullrich, J.E. (2001) J. Clin. Invest. 107:785.
  4. Bornstein, P. and E.H. Sage (2002) Curr. Opin. Cell Biol. 14:608.
  5. LaBell, T.L. and P.H. Byers (1993) Genomics 17:225.
  6. Kyriakides, T.R. et al. (1998) J. Histochem. Cytochem. 46:1007.
  7. Kyriakides, T.R. et al. (1998) J. Cell Biol. 140:419.
  8. Anilkumar, N. et al. (2002) J. Cell Sci. 115:2357.
  9. Misenheimer, T.M. et al. (2003) Biochemistry 42:5125.
  10. Murphy-Ullrich, J.E. et al. (1993) J. Biol. Chem. 268:26784.
  11. Calzada, M.J. et al. (2004) Circ. Res. 94:462.
  12. Calzada, M.J. et al. (2003) J. Biol. Chem. 278:40679.
  13. Noh, Y-H. et al. (2003) J. Invest. Dermatol. 121:1536.
  14. Simantov, R. et al. (2005) Matrix Biol. 24:27.
  15. Streit, M. et al. (1999) Proc. Natl. Acad. Sci. USA 96:14888.
  16. Yang, Z. et al. (2001) J. Biol. Chem. 276:8403.


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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Publications for Thrombospondin-2 Antibody (AF1635)(2)

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

We have publications tested in 2 applications: IHC, Western Blot.

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Biotin BAF1635

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Gene Symbol THBS2