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  6. EphA2 Protein, Human (Biotinylated, HEK293, His-Avi)

EphA2 Protein, Human (Biotinylated, HEK293, His-Avi)

Cat. No.: HY-P72992
COA Handling Instructions

The EphA2 protein is an important member of the ephrin receptor subfamily that mediates developmental events, particularly in the nervous system. It has a single kinase domain and an extracellular region that binds ephrin-A ligands. EphA2 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived EphA2 protein, expressed by HEK293 , with C-6*His, C-Avi labeled tag. The total length of EphA2 Protein, Human (Biotinylated, HEK293, His-Avi) is 511 a.a., with molecular weight of ~59.4 kDa.

For research use only. We do not sell to patients.

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  • Biological Activity

  • Technical Parameters

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Description

The EphA2 protein is an important member of the ephrin receptor subfamily that mediates developmental events, particularly in the nervous system. It has a single kinase domain and an extracellular region that binds ephrin-A ligands. EphA2 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived EphA2 protein, expressed by HEK293 , with C-6*His, C-Avi labeled tag. The total length of EphA2 Protein, Human (Biotinylated, HEK293, His-Avi) is 511 a.a., with molecular weight of ~59.4 kDa.

Background

EphA2 Protein, a member of the ephrin receptor subfamily within the protein-tyrosine kinase family, plays a crucial role in mediating developmental events, particularly within the nervous system. Featuring a single kinase domain and an extracellular region with a Cys-rich domain and 2 fibronectin type III repeats, EPH receptors are involved in binding ephrin-A and ephrin-B ligands. EphA2 specifically binds ephrin-A ligands and displays broad expression across various tissues, including esophagus (RPKM 37.8), urinary bladder (RPKM 18.3), and 21 other tissues. Additionally, mutations in this gene are associated with certain genetically-related cataract disorders, highlighting its significance in both developmental processes and ocular health.

Biological Activity

Measured by its binding ability in a functional ELISA. Immobilized EFNA1-hFc at 10 μg/mL (100 μL/well) can bind Biotinylated EphA2 Protein, Human (HEK293, His-Avi) and the EC50 is 20-40 ng/mL.

Species

Human

Source

HEK293

Tag

C-6*His;C-Avi

Accession

NP_004422.2 (A24-N534)

Gene ID
Molecular Construction
N-term
EphA2 (A24-N534)
Accession # NP_004422.2
Avi-His
C-term
Synonyms
Ephrin type-A receptor 2; Epithelial cell kinase; EPHA2; ECK
AA Sequence

LKTYVDPHTYEDPNQAVLKFTTEIHPSCVTRQKVIGAGEFGEVYKGMLKTSSGKKEVPVAIKTLKAGYTEKQRVDFLGEAGIMGQFSHHNIIRLEGVISKYKPMMIITEYMENGALDKFLREKDGEFSVLQLVGMLRGIAAGMKYLANMNYVHRDLAARNILVNSNLVCKVSDFGLSRVLEDDPEATYTTSGGKIPIRWTAPEAISYRKFTSASDVWSFGIVMWEVMTYGERPYWELSNHEVMKAINDGFRLPTPMDCPSAIYQLMMQCWQQERARRPKFADIVSILDKLIRAPDSLKTLADFDPRVSIRLPSTSGSEGVPFRTVSEWLESIKMQQYTEHFMAAGYTAIEKVVQMTNDDIKRIGVRLPGHQKRIAYSLLGLKDQVNTVGIPI

Molecular Weight

Approximately 59.4 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
EphA2 Protein, Human (Biotinylated, HEK293, His-Avi)
Cat. No.:
HY-P72992
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