Bioactive grade

Recombinant human TRAP/CD40L protein (Active) (Biotin) (ab246110)


  • Product name

    Recombinant human TRAP/CD40L protein (Active) (Biotin)
    See all TRAP/CD40L proteins and peptides
  • Biological activity

    Immobilized Human CD40, His Tag at 2 μg/mL (100 μL/well) can bind ab246110 with a linear range of 1-31 ng/mL (QC tested).

  • Purity

    > 95 % SDS-PAGE.
    The biotin to protein ratio is 0.5-1 as determined by the HABA assay.
  • Endotoxin level

    < 1.000 Eu/µg
  • Expression system

    HEK 293 cells
  • Accession

  • Protein length

    Protein fragment
  • Animal free

  • Nature

    • Species

    • Sequence

    • Predicted molecular weight

      45 kDa including tags
    • Amino acids

      113 to 261
    • Tags

      Avi tag N-Terminus , Fc tag N-Terminus
    • Additional sequence information

      Biotinylated using Avitag™ technology. Briefly, the single lysine residue in the Avitag™ is enzymatically labeled with biotin. Avitag™ sequence GLNDIFEAQKIEWHE. Human IgG1 Fc tag.
  • Conjugation



Our Abpromise guarantee covers the use of ab246110 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications

    Functional Studies


  • Form

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon reconsitution add a carrier protein (0.1% BSA). Store at -20°C or -80°C. Avoid freeze / thaw cycle. Store In the Dark.

    pH: 7.50
    Constituents: 5% Trehalose, 0.61% Tris, 0.75% Glycine

    0.22 µm filtered

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • Reconstitution
    It is recommended to reconstitute the lyophilized product in sterile deionized water to a final concentration of 1 mg/ml. Solubilize for 30 to 60 minutes at room temperature with occasional gentle mixing. Carrier protein (0.1% HSA or BSA) is strongly recommended for further dilution and long-term storage.

General Info

  • Alternative names

    • CD 40L
    • CD154
    • CD40 antigen ligand
    • CD40 ligand
    • CD40 ligand, soluble form
    • CD40-L
    • CD40L
    • CD40L_HUMAN
    • CD40LG
    • gp39
    • hCD40L
    • HIGM1
    • IGM
    • IMD3
    • T B cell activating molecule
    • T BAM
    • T-cell antigen Gp39
    • TNF-related activation protein
    • TNFSF5
    • TrAP
    • Tumor necrosis factor (ligand) superfamily member 5
    • Tumor necrosis factor ligand superfamily member 5
    see all
  • Function

    Mediates B-cell proliferation in the absence of co-stimulus as well as IgE production in the presence of IL-4. Involved in immunoglobulin class switching.
    Release of soluble CD40L from platelets is partially regulated by GP IIb/IIIa, actin polymerization, and an matrix metalloproteinases (MMP) inhibitor-sensitive pathway.
  • Tissue specificity

    Specifically expressed on activated CD4+ T-lymphocytes.
  • Involvement in disease

    Defects in CD40LG are the cause of X-linked immunodeficiency with hyper-IgM type 1 (HIGM1) [MIM:308230]; also known as X-linked hyper IgM syndrome (XHIM). HIGM1 is an immunoglobulin isotype switch defect characterized by elevated concentrations of serum IgM and decreased amounts of all other isotypes. Affected males present at an early age (usually within the first year of life) recurrent bacterial and opportunistic infections, including Pneumocystis carinii pneumonia and intractable diarrhea due to cryptosporidium infection. Despite substitution treatment with intravenous immunoglobulin, the overall prognosis is rather poor, with a death rate of about 10% before adolescence.
  • Sequence similarities

    Belongs to the tumor necrosis factor family.
  • Post-translational

    The soluble form derives from the membrane form by proteolytic processing.
    N-linked glycan is a mixture of high mannose and complex type. Glycan structure does not influence binding affinity to CD40.
    Not O-glycosylated.
  • Cellular localization

    Secreted and Cell membrane.
  • Information by UniProt


  • Reducing SDS-PAGE analysis of ab246110. The protein has a calculated MW of 45.0 kDa. The protein migrates to 50-55 kDa under reducing conditions (SDS-PAGE) due to glycosylation.

  • Immobilized Human CD40, His Tag at 2 μg/mL (100 μL/well) can bind ab246110 with a linear range of 1-31 ng/mL (QC tested).


ab246110 has not yet been referenced specifically in any publications.

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