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EphB4 Protein, Human (HEK293, Fc)

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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, Fc) is the recombinant human-derived EphB4 protein, expressed by HEK293 , with C-hFc labeled tag.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
  • EphB4 Protein, Human (HEK293, Fc) Product Image
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To place orders, for customer services and technical support, please contact: MedChemExpress USA

Tel: 609-228-6898 E-mail: [email protected] [email protected]

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To place orders, for customer services and technical support, please contact:

609-228-6898
[email protected] [email protected]
Find Your Local Distributor Your local distributor: Hycultec GmbHHycultec
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs
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Biological Activity

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, Fc) is the recombinant human-derived EphB4 protein, expressed by HEK293 , with C-hFc 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.

Verified Bioactivity

1.This product does not contain protein kinase domain.
2.Measured by its binding ability in a functional ELISA. Immobilized human EFNB2 at 2 μg/mL (100 μl/well) can bind human EphB4-Fc with a linear range of 1.56-12.5 ng/mL.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-hFc
  • Accession

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

  • Gene ID
    2050  [NCBI]
  • Molecular Construction
    • N-term
    • EphB4 (L16-A539)
      Accession # P54760-1/NP_004435.3
    • hFc
    • C-term
  • Protein Length

    Extracellular Domain

  • Synonyms

    EPHB4; Tyrosine-Protein Kinase Receptor HTK; Prev. HTK; Ephrin Receptor EphB4; Hepatoma Transmembrane Kinase; CMAVM2; Ephrin Type-B Receptor 4; LMPHM7; Tyro11; TYRO11; Tyrosine-Protein Kinase TYRO11; EphB4; MYK1; HFASD; EPH Receptor B4; Receptor Protein-T

  • AA Sequence

    LEETLLNTKLETADLKWVTFPQVDGQWEELSGLDEEQHSVRTYEVCDVQRAPGQAHWLRTGWVPRRGAVHVYATLRFTMLECLSLPRAGRSCKETFTVFYYESDADTATALTPAWMENPYIKVDTVAAEHLTRKRPGAEATGKVNVKTLRLGPLSKAGFYLAFQDQGACMALLSLHLFYKKCAQLTVNLTRFPETVPRELVVPVAGSCVVDAVPAPGPSPSLYCREDGQWAEQPVTGCSCAPGFEAAEGNTKCRACAQGTFKPLSGEGSCQPCPANSHSNTIGSAVCQCRVGYFRARTDPRGAPCTTPPSAPRSVVSRLNGSSLHLEWSAPLESGGREDLTYALRCRECRPGGSCAPCGGDLTFDPGPRDLVEPWVVVRGLRPDFTYTFEVTALNGVSSLATGPVPFEPVNVTTDREVPPAVSDIRVTRSSPSSLSLAWAVPRAPSGAVLDYEVKYHEKGAEGPSSVRFLKTSENRAELRGLKRGASYLVQVRARSEAGYGPFGQEHHSQTQLDESEGWREQLA

  • Predicted Molecular Mass

    83.8 kDa

  • Molecular Weight

    Approximately 105-115 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

    ≥ 90%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Solution.

Formulation

Supplied as a 0.22 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

Please use rapid thawing with running water to thaw the protein.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Calculators

Reconstitution Calculator

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

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Dilution Calculator

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

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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Measured by its ability to inhibit anti-CD3-induced proliferation of stimulated CTLL-2 mouse cytotoxic T cells. The ED50 this effect is 0.8023 μg/ml, corresponding to a specific activity is 1246.42 units/mg.

Assay Types
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