EphA4 Antibody [Biotin]

• Applications: WB
• Clonality: Polyclonal
• Host: Goat
• Conjugate: Biotin
• Concentration: LYOPH

EphA4 Antibody [Biotin] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant mouse EphA4
  Val20-Thr547
  Accession # Q03137
• Specificity: Detects mouse EphA4 in Western blots. In Western blots, less than 5% cross-reactivity with recombinant human EphA5, recombinant mouse (rm) EphA3, and rmEphA6 is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Goat
• Gene: EPHA4
• Purity Statement: Antigen Affinity-purified

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 BSA as a carrier protein.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

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

Background

EphA4, also known as Sek, Sek1, Cek8, Hek8, and Tyro1 (1), is a member of the Eph receptor family which binds members of the ephrin ligand family. There are two classes of receptors, designated A and B. Both the A and B class receptors have an extracellular region consisting of a globular domain, a cysteine-rich domain, and two fibronectin type III domains. This is followed by the transmembrane region and cytoplasmic region. The cytoplasmic region contains a juxtamembrane motif with two tyrosine residues, which are the major autophosphorylation sites, a kinase domain, and a conserved sterile alpha motif (SAM) in the carboxy tail which contains one conserved tyrosine residue. Activation of kinase activity occurs after ligand recognition and binding. EphA4 has been shown to bind ephrin-A5, ephrin-A1, ephrin‑A3, ephrin-A2, ephrin-B2, ephrin-B3, and ephrin-A4 (2, 3). The extracellular domains of mouse and human EphA4 share greater than 95% amino acid identity. Only membrane-bound or Fc-clustered ligands are capable of activating the receptor in vitro. While soluble monomeric ligands bind the receptor, they do not induce receptor autophosphorylation and activation (2). In vivo, the ligands and receptors display reciprocal expression (3). It has been found that nearly all receptors and ligands are expressed in developing and adult neural tissue (3). The Eph/ephrin families also appear to play a role in angiogenesis (3).

1. Eph Nomenclature Committee [letter] (1997) Cell 9:403.
2. Flanagan, J.G. and P. Vanderhaegen (1998) Annu. Rev. Neurosci. 21:309.
3. Pasquale, E.B. (1997) Curr. Opin. Cell. Biol. 9:608.

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.

Bioinformatics

• Gene Symbol: EPHA4