• Species Reactivity

  Human

• Specificity

  Detects human EphB6 in direct ELISAs.

• Source

  Monoclonal Mouse IgG1 Clone # 465327

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human EphB6    
  Val17-Thr579    
  Accession # O15197

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 647

Applications

• 
  

  Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  MOLT‑4 human acute lymphoblastic leukemia cell line

• 
  

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

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: EphB6

EphB6, also known as Hep and Mep, is a 110 kDa member of the Eph receptor tyrosine kinase family. The A and B classes of Eph proteins are distinguished by ligand preference and have a common structural organization (1‑4). The human EphB6 cDNA encodes a 1006 amino acid (aa) precursor that includes a 16 aa signal sequence, a 563 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 406 aa cytoplasmic domain. The ECD contains serine- and cysteine-rich regions and two fibronectin type-III domains. The cytoplasmic domain contains one non-catalytic protein kinase-like, one proline-rich, one SAM, and one PDZ-binding domain (5, 6). Within the ECD, human EphB6 shares 91% aa sequence identity with mouse and rat EphB6. It shares 38‑45% aa sequence identity with human EphB1, 2, 3, 4, and 6. Human EphB5 has not been characterized. Two secreted splice variants have been described in mouse but not in human (6). EphB6 is primarily expressed in brain, pancreas, thymus, and peripheral T cells (5, 7, 8). EphB6 forms stable heterodimers with EphB1 and participates in signal transduction by association with other enzymatically active molecules (9‑11). Ephrin-B2 is the dominant ligand for EphB6, although Ephrin-B1 and Ephrin-B3 can also trigger responses (12‑14). High concentrations of Ephrin-B2 inhibit cell adhesion and migration as well as tyrosine phosphorylation of EphB6. Conversely, low concentrations of Ephrin-B2 promote adhesion and migration and do not lead to EphB6 phosphorylation (15). The level of EphB6 expression is inversely correlated with tumor aggressiveness in a variety of malignancies (1). EphB6 also functions as a T cell co-stimulatory molecule (8, 11, 13). EphB6 clusters with the T cell receptor and participates in the subsequent attenuation of the T cell response (8, 10, 11, 13).

• References:

1. Surawska, H. et al. (2004) Cytokine Growth Factor Rev. 15:419.

2. Poliakov, A. et al. (2004) Dev. Cell 7:465.

3. Wu, J. and H. Luo (2005) Curr. Opin. Hematol. 12:292.

4. Pasquale, E.B. (2005) Nat. Rev. Mol. Cell Biol. 6:462.

5. Matsuoka, H. et al. (1997) Biochem. Biophys. Res. Commun. 235:487.

6. Gurniak, C.B. and L.J. Berg (1996) Oncogene 13:777.

7. Hafner, C. et al. (2004) Clin. Chem. 50:490.

8. Luo, H. et al. (2002) J. Clin. Invest. 110:1141.

9. Freywald, A. et al. (2002) J. Biol. Chem. 277:3823.

10. Freywald, A. et al. (2003) J. Biol. Chem. 278:10150.

11. Luo, H. et al. (2001) J. Immunol. 167:1362.

12. Munthe, E. et al. (2000) FEBS Lett. 466:169.

13. Luo, H. et al. (2004) J. Clin. Invest. 114:1762.

14. Shimoyama, M. et al. (2002) Biochem. Biophys. Res. Commun. 298:87.

15. Matsuoka, H. et al. (2005) J. Biol. Chem. 280:29355.

• Long Name:

  Eph Receptor B6

• Entrez Gene IDs:

  2051 (Human); 13848 (Mouse)

• Alternate Names:

  EC 2.7.10.1; EPH receptor B6; EphB6; ephrin type-B receptor 6; Hep; HEPTyrosine-protein kinase-defective receptor EPH-6; Mep; MGC129910; MGC129911