Human Ephrin-A4 Antibody

Catalog # Availability Size / Price Qty
MAB369
MAB369-SP
Ephrin‑A4 in Human Squamous Cell Carcinoma.
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Citations (1)
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Human Ephrin-A4 Antibody Summary

Species Reactivity
Human
Specificity
Detects human Ephrin-A4 in direct ELISAs and Western blots. In direct ELISAs, approximately 25% cross‑reactivity with recombinant mouse (rm) Ephrin-A4 is observed and no cross-reactivity with recombinant human Ephrin-A3, -A5, -B3, rmEphrin-A1, -A2, -B1, and -B2 is observed.
Source
Monoclonal Mouse IgG2B Clone # 135305
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Ephrin-A4
Leu26-Gly171
Accession # P52798
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Human Ephrin-A4 Fc Chimera (Catalog # 369-EA)
Immunohistochemistry
5-25 µg/mL
See below

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

Scientific Data

Immunohistochemistry Ephrin-A4 antibody in Human Squamous Cell Carcinoma by Immunohistochemistry (IHC-P). View Larger

Ephrin‑A4 in Human Squamous Cell Carcinoma. Ephrin-A4 was detected in immersion fixed paraffin-embedded sections of human squamous cell carcinoma using Mouse Anti-Human Ephrin-A4 Monoclonal Antibody (Catalog # MAB369) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cancer cells. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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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: Ephrin-A4

Ephrin-A4, also known as LERK-4 and EFL-4, (1) is a member of the ephrin ligand family which binds members of the Eph receptor family. All ligands share a conserved extracellular sequence, which most likely corresponds to the receptor binding domain. This conserved sequence consists of approximately 125 amino acids and includes four invariant cysteines. The A-class ligands have a GPI anchor following the conserved sequence. Ephrin-A4 has been shown to bind EphA2, EphA3, EphA4, EphA5, EphA6, EphA7, and EphB1 (2, 3). The extracellular domains of human and mouse Ephrin-A4 share 80% 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).

References
  1. Eph Nomenclature Committee [letter] (1997) Cell 90:403.
  2. Flanagan, J.G. and P. Vanderhaegen (1998) Annu. Rev. Neurosci. 21:309.
  3. Pasquale, E.B. (1997) Curr. Opin. Cell. Biol. 9:608.
Entrez Gene IDs
1945 (Human); 13639 (Mouse)
Alternate Names
EFL4; EFL-4; EFNA4; EPH-related receptor tyrosine kinase ligand 4; EphrinA4; Ephrin-A4; EPLG4MGC125826; LERK-4; LERK4FLJ57652; ligand of eph-related kinase 4

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Citation for Human Ephrin-A4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Ephrin A4-ephrin receptor A10 signaling promotes cell migration and spheroid formation by upregulating NANOG expression in oral squamous cell carcinoma cells
    Authors: YL Chen, YC Yen, CW Jang, SH Wang, HT Huang, CH Chen, JR Hsiao, JY Chang, YW Chen
    Scientific Reports, 2021-01-12;11(1):644.
    Species: Human
    Sample Types: Cell Lysates, Whole Tissue
    Applications: IHC, Western Blot

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