HVEM/TNFRSF14 Protein, Human (HEK293, His)

Customer Review

Based on 1 Customer Validation

HVEM (herpes virus entry mediator, TNFRSF14, CD270) is a member of the tumor necrosis factor receptor superfamily (TNFRSF). HVEM is a bidirectional molecular switch that transduces positive and negative signals. HVEM can deliver proinflammatory and survival signals when engaged by BTLA or LIGHT, stimulating lymphocyte proliferation, activation, and inducing inflammatory reactions. While, HVEM binds to CD160 and BTLA, inhibiting T- and B-lymphocyte activation and proliferation. HVEM/TNFRSF14 Protein, Human (HEK293, His) is a recombinant protein with a C-Terminal His label, It is produced in HEK293 cells.

For research use only. We do not sell to patients.
  • Species: Human
  • Source: HEK293
  • Storage:
    Stored at -20°C for 2 years from date of receipt. 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.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • References
  • Help & FAQs

Biological Activity

Description

HVEM (herpes virus entry mediator, TNFRSF14, CD270) is a member of the tumor necrosis factor receptor superfamily (TNFRSF). HVEM is a bidirectional molecular switch that transduces positive and negative signals. HVEM can deliver proinflammatory and survival signals when engaged by BTLA or LIGHT, stimulating lymphocyte proliferation, activation, and inducing inflammatory reactions. While, HVEM binds to CD160 and BTLA, inhibiting T- and B-lymphocyte activation and proliferation[2][3]. HVEM/TNFRSF14 Protein, Human (HEK293, His) is a recombinant protein with a C-Terminal His label, It is produced in HEK293 cells.

Background

HVEM is widely expressed in a range of hematopoietic cells, including B cells, T cells, NK cells, monocytes and immature dendritic cells, and several non-hematopoietic cells and tissues, including the liver, kidney and lung[1].
The amino acid sequence of human HVEM protein has low homology for mouse HVEM protein.
HVEM is known as the “molecular switch” models of activation and inhibition. HVEM provides an inhibitory or activating signal and bi-directionally regulates host immune function. HVEM binds to LIGHT or LIGHT-α exerts a positive stimulatory effect, stimulating lymphocyte proliferation, activation, and inducing inflammatory reactions; thus, providing a second stimulatory signal for T cell activation. Besides, the Binding of HVEM to BTLA and CD160 exerts an adverse regulatory effect, promoting signal transduction through the ERK1/2 and PI3K (phosphatidylinositol 3-kinase)–AKT (protein kinase B (PKB)) pathways, leading to the production of IFNγ, inhibiting T- and B-lymphocyte activation and proliferation and binding of HVEM to HSV-gD, which can promote HSV infection in target cells[2][3].
HVEM is considered to be a molecular switch for immune responses, HVEM  induces DCs to produce IL-10 and shows protection against experimental autoimmune myocarditis (EAM) caused by myosin[4].

Verified Bioactivity

Measured by its ability to inhibit TNF-beta -mediated cytotoxicity using L 929 mouse fibroblast cells. The ED50 for this effect is 4.180 μg/mL in the presence of 50 pg/mL of Recombinant Human TNF-beta, corresponding to a specific activity is 239.2344 units/mg.

MCE Validation Data

  • Bioactivity - Cell-Based Assay

    Bioactivity - Cell-Based Assay

    Measured by its ability to inhibit TNF-beta -mediated cytotoxicity using L 929 mouse fibroblast cells. The ED50 for this effect is 4.180 μg/mL in the presence of 50 pg/mL of Recombinant Human TNF-beta, corresponding to a specific activity is 239.2344 units/mg.

Technical Parameters

  • Species Human
  • Source HEK293
  • Tag C-6*His
  • Accession
  • Gene ID
  • Protein Length

    Extracellular Domain

  • Synonyms

    TNFRSF14; Herpes Virus Entry Mediator A; TNF Receptor Superfamily Member 14; Tumor Necrosis Factor Receptor Superfamily, Member 14; HVEM; Tumor Necrosis Factor Receptor-Like Gene2; HVEA; Tumor Necrosis Factor Receptor-Like 2; TR2; Herpesvirus Entry Mediator A; LIGHTR; Herpesvirus Entry Mediator; CD270; CD40-Like Protein; ATAR; CD270 Antigen; Tumor Necrosis Factor Receptor Superfamily, Member 14 (Herpesvirus Entry Mediator); HveA; Tumor Necrosis Factor Receptor Superfamily Member 14

  • AA Sequence

    LPSCKEDEYPVGSECCPKCSPGYRVKEACGELTGTVCEPCPPGTYIAHLNGLSKCLQCQMCDPAMGLRASRNCSRTENAVCGCSPGHFCIVQDGDHCAACRAYATSSPGQRVQKGGTESQDTLCQNCPPGTFSPNGTLEECQHQTKCSWLVTKAGAGTSSSHWV

  • Predicted Molecular Mass

    18.4 kDa

  • Molecular Weight

    Approximately 22-45 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Glycosylation

    Yes

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.

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. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years from date of receipt. 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.

References

Calculators

Reconstitution Calculator

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

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

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

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Volume (start) Volume (start)
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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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