1. Recombinant Proteins
  2. Cytokines and Growth Factors Receptor Proteins Enzymes & Regulators
  3. Ephrin/Eph Family Receptor Tyrosine Kinases Protein Tyrosine Kinases
  4. Eph Receptors
  5. EphB4
  6. EphB4 Protein, Human (HEK293, His)

EphB4 Protein, Human (HEK293, His)

Cat. No.: HY-P77646
COA Handling Instructions

EphB4 protein is a receptor tyrosine kinase that binds to ephrin B ligand and initiates bidirectional signaling. Positive signaling regulates the rejection and separation of cells from EFNB2-expressing cells. EphB4 Protein, Human (HEK293, His) is the recombinant human-derived EphB4 protein, expressed by HEK293 , with C-His labeled tag.

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

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Size Price Stock Quantity
20 μg $68 In-stock
50 μg $135 In-stock
100 μg $230 In-stock
> 100 μg   Get quote  

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  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

Description

EphB4 protein is a receptor tyrosine kinase that binds to ephrin B ligand and initiates bidirectional signaling. Positive signaling regulates the rejection and separation of cells from EFNB2-expressing cells. EphB4 Protein, Human (HEK293, His) is the recombinant human-derived EphB4 protein, expressed by HEK293 , with C-His labeled tag.

Background

EphB4 protein, a receptor tyrosine kinase, engages in promiscuous binding to transmembrane ephrin-B family ligands located on adjacent cells, initiating contact-dependent bidirectional signaling. The downstream pathway originating from the receptor is termed forward signaling, while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Collaborating with its cognate ligand, EFNB2, EphB4 is intricately involved in regulating cell adhesion and migration. Moreover, EphB4 assumes a central role in heart morphogenesis, angiogenesis, and the remodeling and permeability of blood vessels. The forward signaling mediated by EPHB4 is instrumental in controlling cellular repulsion and segregation from EFNB2-expressing cells.

Biological Activity

The enzyme activity of this recombinant protein is testing in progress, we cannot offer a guarantee yet.

Species

Human

Source

HEK293

Tag

C-His

Accession

P54760-1/NP_004435.3 (L16-A539)

Gene ID
Molecular Construction
N-term
EphB4 (L16-A539)
Accession # P54760-1/NP_004435.3
His
C-term
Synonyms
EPHB4; HTK; MYK1; TYRO11
Molecular Weight

60-70 kDa

Purity

Greater than 95% as determined by Tris-Bis PAGE.

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 5% trehalose is added as protectant 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:
EphB4 Protein, Human (HEK293, His)
Cat. No.:
HY-P77646
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