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  3. TNF Superfamily Stimulatory Immune Checkpoint Molecules Dendritic Cell CD Proteins Epithelial cell CD Proteins
  4. TNF Superfamily Ligands 4-1BBL
  5. 4-1BBL
  6. 4-1BBL/TNFSF9 Protein, Mouse (HEK293, His)

4-1BBL (4-1BB ligand) is a type II membrane protein of the TNF superfamily, is expressed on antigen-presenting cells. 4-1BB with 4-1BBL can induce T-cell expansion, cytokine induction, differentiation, and upregulation of anti-apoptotic genes as well as protect T cells from activation-induced cell death (AICD). 4-1BBL stimulates T cell proliferation and induces effective anti-tumor immune responses. 4-1BBL is an immunostimulant molecule that interacts with the 4-1BB high-affinity receptor during the antigen presentation, providing costimulatory signals to both CD4+ and CD8+ T cells through the activation of NF-kB, c-Jun, and p38 downstream pathways, triggering pleiotropic effects on the immune system. 4-1BBL/TNFSF9 Protein, Mouse (HEK293, His) is a recombinant protein with a N-Terminal His label, It consists of 206 amino acids (R104-E309) and is produced in HEK293 cells.

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  • Biological Activity

  • Technical Parameters

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  • Documentation

  • References

Description

4-1BBL (4-1BB ligand) is a type II membrane protein of the TNF superfamily, is expressed on antigen-presenting cells. 4-1BB with 4-1BBL can induce T-cell expansion, cytokine induction, differentiation, and upregulation of anti-apoptotic genes as well as protect T cells from activation-induced cell death (AICD)[1]. 4-1BBL stimulates T cell proliferation and induces effective anti-tumor immune responses[3]. 4-1BBL is an immunostimulant molecule that interacts with the 4-1BB high-affinity receptor during the antigen presentation, providing costimulatory signals to both CD4+ and CD8+ T cells through the activation of NF-kB, c-Jun, and p38 downstream pathways, triggering pleiotropic effects on the immune system[4]. 4-1BBL/TNFSF9 Protein, Mouse (HEK293, His) is a recombinant protein with a N-Terminal His label, It consists of 206 amino acids (R104-E309) and is produced in HEK293 cells.

Background

4-1BBL is expressed on a variety of antigen presenting cells (APCs), including activated B cells, dendritic cells, macrophages, and myeloid cells[1].
The amino acid sequence of human 4-1BBL protein has low homology for mouse and rat 4-1BBL protein.
4-1BBL binds to high-affinity 4-1BB, resulting in the recruitment of intracellular TRAF adaptor molecules (TRAF1 and TRAF2), and then activate of NF-jB and the extracellular signal regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38 mitogen-associated protein (MAP) kinase signaling cascades. The binding of 4-1BBL to 4-1BB generates strong co-stimulatory signals in T-cells that lead to up-regulation of anti-apoptotic molecules, cytokine secretion, and enhanced effector function[2].
4-1BBL is a member of the TNF family of proteins. 4-1BBL is an immunostimulant molecule that interacts with the 4-1BB high-affinity receptor during the antigen presentation, providing costimulatory signals to both CD4+ and CD8+ T cells through the activation of NF-kB, c-Jun, and p38 downstream pathways, triggering pleiotropic effects on the immune system[4]. 4-1BBL significantly induces T cell proliferation and increases the stimulation of both IL-2 and IFN-γ[5].

In Vitro

4-1BB (hamster ovary; 5 μg/mL; 16 h) costimulates B lymphocyte proliferation[4].

Biological Activity

Measured by its ability to co-stimulate IL-2 secretion by mouse T cells in the presence of anti-CD3. The ED50 for this effect is ≤6.137 ng/mL, corresponding to a specific activity is ≥1.63×105 U/mg.

  • Measured by its ability to co-stimulate IL-2 secretion by mouse T cells in the presence of anti-CD3.The ED50 for this effect is 2.149 ng/mL, corresponding to a specific activity is 4.65×105 U/mg.
Species

Mouse

Source

HEK293

Tag

N-10*His

Accession

P41274 (R104-E309)

Gene ID
Molecular Construction
N-term
10*His
4-1BBL (R104-E309)
Accession # P41274
C-term
Synonyms
rMu4-1BB Ligand/TNFSF9, His; 4-1BBL; CD137L; 4-1BB Ligand; TNFSF9
AA Sequence

HHHHHHHHHHRTEPRPALTITTSPNLGTRENNADQVTPVSHIGCPNTTQQGSPVFAKLLAKNQASLCNTTLNWHSQDGAGSSYLSQGLRYEEDKKELVVDSPGLYYVFLELKLSPTFTNTGHKVQGWVSLVLQAKPQVDDFDNLALTVELFPCSMENKLVDRSWSQLLLLKAGHRLSVGLRAYLHGAQDAYRDWELSYPNTTSFGLFLVKPDNPWE

Molecular Weight

Approximately 33-45 kDa due to the glycosylation.

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 or PBS, pH 7.4, 5-8% trehalose.

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.

Documentation
References

4-1BBL/TNFSF9 Protein, Mouse (HEK293, His) Related Classifications

Help & FAQs
  • How should lyophilized recombinant proteins be reconstituted and stored?

    1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss. 2. Taking 10 μg as an example, first add 20 μL of reconstituted solution provided by MCE and use a pipette to gently resuspend the lyophilized protein until it is fully dissolved.. (For most proteins, the reconstitution solution we provide is sterile water. If a diluent other than water is required, it will be indicated in the product's Certificate of Analysis (COA).). 3. Add an additional 80 μL of buffer/culture medium containing carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% trehalose), and then use a pipette to gently mix until uniform. The final concentration is should not be lower than 100 μg/mL. 4. Aliquot at least 20 μL per tube. 5. After aliquoting, store it frozen at a temperature ranging from -20ºC to -80ºC, and it can be preserved for 3 to 6 months.

  • How should solution-form recombinant proteins be stored?

    1. The product can be stored in its original form and diluted as needed upon use. 2. Alternatively, dilute with a buffer/culture medium containing a carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% alginate), mix well by pipetting, and ensure that

  • Why is it necessary to add carrier proteins?

    Carrier proteins are commonly added to enhance the stability of recombinant proteins, preventing them from adhering to the walls of the container during freezing or thawing processes. Plastic tubes have a certain adsorptive capacity for proteins, which may lead to difficulty in separating the protein from the tube walls, resulting in a decrease in the actual concentration of the protein in the solution and thus affecting its activity. To minimize such losses, it is recommended to add a commonly used carrier protein solution prior to the long-term storage of recombinant protein products.

  • Carrier protein types and options?

    In cases where the carrier protein is not expected to influence the experimental outcomes, an appropriate carrier protein, such as 0.1% BSA (Bovine Serum Albumin), 5% HSA (Human Serum Albumin), 10% FBS (Fetal Bovine Serum), or 5% trehalose, can be incorpo

  • 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:
4-1BBL/TNFSF9 Protein, Mouse (HEK293, His)
Cat. No.:
HY-P7446
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