Recombinant Human Ephrin-A1 (EFNA1) (Active)

Recombinant Human Ephrin-A1 (EFNA1) (Active) — Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Purity >90%.

SKU: BCACP-000489 Category:
Product SKUBCACP-000489
Product DescriptionRecombinant Human Ephrin-A1 (EFNA1) protein is expressed from Mammalian cell with C-terminal hFc1-tagged. It contains 19-182aa. [Accession | P20827].
Uniprot No.P20827
Gene NamesEFNA1
PurityGreater than 90% as determined by SDS-PAGE.
Expression SystemMammalian cell
Expression Region19-182aa
SpeciesHomo sapiens (Human)
Tag InfoC-terminal hFc1-tagged
Molecular weight48.3 kDa
ActivityMeasured by its binding ability in a functional ELISA. Immobilized Human CD14 at 2 μg/mL on an Nickel Coated plate can bind Anti-CD14 recombinant antibody . The EC50 is 2.148-2.447 ng/mL.
BufferLyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Alternative NamesEphrin-A1; EPH-related receptor tyrosine kinase ligand 1 (LERK-1); Immediate early response protein B61; Tumor necrosis factor alpha-induced protein 4 (TNF alpha-induced protein 4); Ephrin-A1, secreted form; EFNA1; EPLG1, LERK1, TNFAIP4

Function

Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells.

Product Specifications

Recombinant Human Ephrin-A1 (EFNA1) (Active) — Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Purity >90%. Suitable for ELISA and Western Blot applications.

Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.

Biological Activity: Measured by its binding ability in a functional ELISA. Immobilized Human CD14 at 2 μg/mL on an Nickel Coated plate can bind Anti-CD14 recombinant antibody . The EC50 is 2.148-2.447 ng/mL.

Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.

Protein Biology

Function

Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells (PubMed:17332925, PubMed:18794797). Involved in angiogenesis, regulating vascular endothelial cell differentiation and migration through activation of EPHA2. Acts as a ligand for EPHA3, inhibiting epithelial-to-mesenchymal transition of cardiac cells and playing a role in heart development (PubMed:12794130). May also contribute to dendritic spine morphogenesis (By similarity)

Subcellular Location

Secreted

Tissue Specificity

Brain. Down-regulated in primary glioma tissues compared to the normal tissues. The soluble monomeric form is expressed in the glioblastoma multiforme (GBM) and breast cancer cells (at protein level)

Subunit

Monomer. Homodimer. Forms heterodimers with EPHA2. Binds to the receptor tyrosine kinases EPHA2, EPHA3, EPHA4, EPHA5, EPHA6 and EPHA7. Also binds with low affinity to EPHA1

Gene: EFNA1  |  Organism: Homo sapiens  |  Synonyms: EPH-related receptor tyrosine kinase ligand 1; Immediate early response protein B61; Tumor necrosis factor alpha-induced protein 4
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.

What is the shipping and delivery time?

Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.

How should this product be stored?

Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.

What quality controls are performed on your products?

Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.

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