• Species Reactivity

  Human

• Specificity

  Detects human DDR2 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human DDR1 is observed.

• Source

  Monoclonal Mouse IgG    _2B Clone # 290814

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human DDR2    
  Gln24-Arg399    
  Accession # Q16832

• Formulation

  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.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Western Blot

  1 µg/mL

  Recombinant Human DDR2 (Catalog # )

• 
  

• Immunohistochemistry

  8-25 µg/mL

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• 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.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: DDR2

DDR2, also known as TYR010 and TKT, is a widely expressed 130 kDa type I transmembrane glycoprotein belonging to the discoidin-like domain containing subfamily of receptor tyrosine kinases (1). Mature human DDR2 consists of a 378 amino acid (aa) extracellular domain (ECD) that includes the discoidin-like domain, a 22 aa transmembrane segment, and a 434 aa cytoplasmic domain that includes the kinase domain (2). Within the ECD, human DDR2 shares 53% aa sequence identity with DDR1 and 97% aa sequence identity with mouse DDR2. The discoidin-like domain mediates DDR2 interactions with collagens I, III, and X (3‑5). Collagens II and V are less efficacious ligands (3). DDR2 selectively recognizes the triple helical structure of collagen compared to monomeric or denatured collagen (3, 5, 6). Within collagen II, the D2 period is required for DDR2 binding, and the D1 period is additionally required to trigger DDR2 autophosphorylation (6). The ECD of DDR2 exists as a non-covalent dimer in solution, and dimerization of the receptor greatly enhances collagen binding (4, 7). DDR2 interaction with collagen I inhibits collagen fibrillogenesis and alters collagen fiber morphology (7). Ligand binding induces DDR2 autophosphorylation in the cytoplasmic domain (3, 5, 8), which promotes associations with Shc and Src (9). In addition to the above mechanism, DDR2 exhibits a distinct interaction with collagen X. A region other than the discoidin-like domain of DDR2 recognizes the non-helical NC1 domain of collagen X, and this interaction does not lead to receptor autophosphorylation (5). Activation of DDR2 by collagen induces upregulation of MMP-1, -2, and -13 as well as DDR2 itself (3, 8, 10). DDR2 is implicated in collagenous matrix destruction and cell invasiveness (8, 10). DDR2 is also upregulated in several pathological conditions, including hepatic fibrosis following injury, rheumatoid and osteoarthritis, and smooth muscle cell hyperplasia (8, 10‑12).

• References:

1. Vogel, W.F. et al. (2006) Cell. Signal. 18:1108.

2. Karn, T. et al. (1993) Oncogene 8:3433.

3. Vogel, W. et al. (1997) Mol. Cell 1:13.

4. Leitinger, B. (2003) J. Biol. Chem. 278:16761.

5. Leitinger, B. and A.P.L Kwan (2006) Matrix Biol. 25:355.

6. Leitinger, B. et al. (2004) J. Mol. Biol. 344:993.

7. Mihai, C. et al. (2006) J. Mol. Biol. 361:864.

8. Olaso, E. et al. (2001) J. Clin. Invest. 108:1369.

9. Ikeda, K. et al. (2002) J. Biol. Chem. 277:19206.

10. Xu, L. et al. (2005) J. Biol. Chem. 280:548.

11. Wang, J. et al. (2002) J. Autoimmun. 19:161.

12. Ferri, N. et al. (2004) Am. J. Pathol. 164:1575.

• Long Name:

  Discoidin Domain Receptor 2

• Entrez Gene IDs:

  4921 (Human); 18214 (Mouse)

• Alternate Names:

  CD167 antigen-like family member B; CD167b antigen; DDR2; Discoidin domain receptor 2; discoidin domain receptor family, member 2; discoidin domain receptor tyrosine kinase 2; discoidin domain-containing receptor 2; EC 2.7.10; EC 2.7.10.1; hydroxyaryl-protein kinase; migration-inducing gene 16 protein; neurotrophic tyrosine kinase receptor related 3; Neurotrophic tyrosine kinase, receptor-related 3; NTRKR3cell migration-inducing protein 20; Receptor protein-tyrosine kinase TKT; TKT; TKTMIG20a; Trk3; TYRO10; Tyro-10; Tyrosine-protein kinase TYRO10; tyrosylprotein kinase