Angiopoietin-2 Antibody (85834R) [Unconjugated]

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Recombinant Human Angiopoietin‑2 protein was serially diluted 2-fold and captured by Mouse Anti-Human Angiopoietin‑2 Monoclonal Antibody (Catalog # MAB098) coated on a Clear Polystyrene Microplate (Catalog # ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications ELISA
Clone
85834R
Clonality
Monoclonal
Host
Mouse
Conjugate
Unconjugated

Order Details

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Catalog# & Formulation Size Price

Angiopoietin-2 Antibody (85834R) [Unconjugated] Summary

Additional Information
Recombinant Monoclonal Antibody.
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Angiopoietin-2
Asp68-Phe496
Accession # O15123
Specificity
Detects human Angiopoietin-2 in direct ELISAs.
Source
N/A
Isotype
IgG2b
Clonality
Monoclonal
Host
Mouse
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 Angiopoietin-2 Antibody (85834R) [Unconjugated]

  • AGPT2
  • ANG2
  • ANG-2
  • angiopoietin 2
  • Angiopoietin-2
  • angiopoietin-2a
  • angiopoietin-2B
  • angiopoitin 2
  • ANGPT2
  • Tie2-ligand

Background

Angiopoietin-2 (Ang-2; also ANGPT2) is a secreted glycoprotein that plays a complex role in angiogenesis and inflammation (1, 2). Mature Ang-2 is 478 amino acids (aa) in length. It contains one coiled-coil domain (aa 166-248) that mediates multimerization, and a C-terminal fibrinogen-like domain (aa 275-495) that mediates receptor binding. Under reducing conditions, secreted monomeric Ang-2 is 65-66 kDa in size. Under nonreducing conditions, both natural and recombinant Ang-2 form 140 kDa dimers, 200 kDa trimers, and 250-300 kDa tetramers and pentamers (3-6). Alternate splicing generates a short isoform that lacks 52 amino acids (aa) preceding the coiled-coil domain (4). Mature human Ang-2 shares 86% aa sequence identity with mouse and rat Ang-2. Ang-2 is widely expressed during development, but it is restricted postnatally to highly angiogenic tissues such as the placenta, ovaries, and uterus (3). It is particularly abundant in vascular endothelial cells (EC) where it is stored in intracellular Weibel-Palade bodies (1, 3, 7). Both Ang-2 and the related Angiopoietin-1 (Ang-1) are ligands for the receptor tyrosine kinase Tie-2 (2). While Ang-1 is a potent Tie-2 agonist, Ang-2 may act as either a Tie-2 antagonist or agonist, depending upon its state of multimerization. The higher the order of oligomer, the more effective Ang-2 becomes as a Tie-2 agonist (3, 8-11). The short isoform appears to block the binding of either Ang-1 or full-length Ang-2 to Tie-2 (4). Ang-2 functions as a pro-angiogenic factor, although it can also induce EC death and vessel regression (12, 13). Upon its release from quiescent EC, it regulates vascular remodeling by promoting EC survival, proliferation, and migration and destabilizing the interaction between EC and perivascular cells (8, 13, 14). Ang-2 is required for postnatal vascular remodeling, and it cooperates with Ang-1 during lymphatic vessel development (7, 15). It mediates the up-regulation of ICAM-1 and VCAM-1 on EC, which facilitates the adhesion of leukocytes during inflammation (16). Ang-2 is up-regulated in both the endothelium and tumor cells of several cancers as well as in ischemic tissue (17-20). Its direct interaction with Integrins promotes tumor cell invasion (21, 22). Ang-2 also promotes the neuronal differentiation and migration of subventricular zone progenitor cells (20).

  1. Augustin, H.G. et al. (2009) Nat. Rev. Mol. Cell Biol. 10:165.
  2. Murdoch, C. et al. (2007) J. Immunol. 178:7405.
  3. Maisonpierre, P.C. et al. (1997) Science 27:55.
  4. Kim, I. et al. (2000) J. Biol. Chem. 275:18550.
  5. Procopio, W.N. et al. (1999) J. Biol. Chem. 274:30196.
  6. Kim, K-T. et al. (2005) J. Biol. Chem. 280:20126.
  7. Gale, N.W. et al. (2002) Dev. Cell 3:411.
  8. Yuan, H.T. et al. (2009) Mol. Cell. Biol. 29:2011.
  9. Falcon, B.L. et al. (2009) Am. J. Pathol. 175:2159.
  10. Kim, H-Z. et al. (2009) Biochim. Biophys. Acta 1793:772.
  11. Kim, I. et al. (2001) Cardiovasc. Res. 49:872.
  12. Lobov, I.B. et al. (2002) Proc. Natl. Acad. Sci. 99:11205.
  13. Cao, Y. et al. (2007) Cancer Res. 67:3835.
  14. Nasarre, P. et al. (2009) Cancer Res. 69:1324.
  15. Dellinger, M. et al. (2008) Dev. Biol. 319:309.
  16. Fiedler, U. et al. (2006) Nat. Med. 12:235.
  17. Koga, K. et al. (2001) Cancer Res. 61:6248.
  18. Etoh, T. et al. (2001) Cancer Res. 61:2145.
  19. Tressel, S.L. et al. (2008) Arterioscler. Thromb. Vasc. Biol. 28:1989.
  20. Liu, X.S. et al. (2009) J. Biol. Chem. 284:22680.
  21. Hu, B. et al. (2006) Cancer Res. 66:775.
  22. Imanishi, Y. et al. (2007) Cancer Res. 67:4254.

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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