ActiBioPure™,His标签,无动物源,无叠氮钠,无载体,生物活性 级 提供 ≥95%(SDS-PAGE) 纯度，适用于对基线干扰要求严格的色谱和分析工作流程。
-20°C储存,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
Purity
≥95% (SDS-PAGE)
Endotoxin level
＜0.1 EU/μg
Function
Ephrin‑A3, also known as EHK1‑L, EFL‑2, and LERK‑3, is an approximately 25 kDa member of the Ephrin‑A family of GPI‑anchored ligands that bind and induce the tyrosine autophosphorylation of Eph receptors. Ephrin‑A ligands are structurally related to the extracellular domains of the transmembrane Ephrin‑B ligands. Eph‑Ephrin interactions are widely involved in the regulation of cell migration, tissue morphogenesis, and cancer progression. Ephrin‑A3 preferentially interacts with receptors in the EphA family. Ephrin‑A3 is an unusual Ephrin‑A molecule in its dependence on heparan sulfate binding for full activity. Mature human Ephrin‑A3 shares 92% aa sequence identity with mouse and rat Ephrin‑A3. Its expression is restricted to discreet locations during the early development of multiple tissues. Ephrin‑A3 expression can be up‑ or down‑regulated by hypoxia in the hippocampus or vascular endothelial cells, respectively. Ephrin‑A3 down‑regulation contributes to hypoxia‑induced endothelial cell chemotaxis, proliferation, and tubule formation. Its interaction with EphA receptors induces neurite growth cone collapse and the repulsion of migrating axons. This activity is important for the accurate pathfinding of migrating axons during CNS development. Astrocyte‑expressed Ephrin‑A3 activates EphA4 on hippocampal neurons to regulate dendritic spine morphology and long term potentiation. The same interaction induces reverse signaling through Ephrin‑A3 to regulate glutamate uptake by the astrocyte and the availability of glutamate in the synapse. Astrocyte‑expressed Ephrin‑A3 also interacts with EphA7 to inhibit the proliferation of neural progenitor cells .
Recombinant Human Ephrin-A3 Protein (rp145632) - SDS-PAGE
3 μg/lane of Recombinant Human Ephrin-A3 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 35 - 45 kDa.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
 ZJ24F0708603 |
分析证书 | rp145632 |
| ZJ24F0708604 |
分析证书 | rp145632 |
| ZJ24F0708605 |
分析证书 | rp145632 |
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