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Ephrin-A4 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. Ephrin-A4 consists of approximately 125 amino acids and includes four invariant cysteines, It has been shown to bind EphA2, EphA3, EphA4, EphA5, EphA6, EphA7, and EphB1. Ephrin-A4 binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. It may play a role in the interaction between activated B-lymphocytes and dendritic cells in tonsils.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 μg | $39 | 7-10 days | |
| 10 μg | $60 | 7-10 days | |
| 20 μg | $83 | 7-10 days | |
| 50 μg | $129 | 7-10 days | |
| 100 μg | $179 | 7-10 days | |
| 200 μg | $248 | 7-10 days | |
| 500 μg | $390 | 7-10 days | |
| 1 mg | $558 | 7-10 days |
| Biological Activity | Immobilized Human EphA7-His at 2μg/ml (100 μl/well) can bind Human EFNA4-Fc-His . The ED50 of Recombinant Human EFNA4-Fc-His is 1.5190 ug/ml. (Regularly tested) |
| Description | Ephrin-A4 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. Ephrin-A4 consists of approximately 125 amino acids and includes four invariant cysteines, It has been shown to bind EphA2, EphA3, EphA4, EphA5, EphA6, EphA7, and EphB1. Ephrin-A4 binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. It may play a role in the interaction between activated B-lymphocytes and dendritic cells in tonsils. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-hFc-6xHis |
| Accession Number | P52798 |
| Synonyms | LERK-4,LERK4,EPLG4,Ephrin-A4,EPH-Related Receptor Tyrosine Kinase Ligand 4,EFNA4 |
| Amino Acid | Leu26-Gly171 |
| Construction | Leu26-Gly171 |
| Protein Purity | Greater than 95% as determined by reducing SDS-PAGE. (QC verified) |
| Molecular Weight | 45 KDa (reducing condition) |
| Endotoxin | < 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. |
| Reconstitution | Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing. |
| Stability & Storage | Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice. |
| Research Background | Ephrin-A4 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. Ephrin-A4 consists of approximately 125 amino acids and includes four invariant cysteines, It has been shown to bind EphA2, EphA3, EphA4, EphA5, EphA6, EphA7, and EphB1. Ephrin-A4 binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. It may play a role in the interaction between activated B-lymphocytes and dendritic cells in tonsils. |

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