Recombinant human CD40L protein (Soluble) (ab173999)

Overview

Description

  • Nature
    Recombinant
  • Source
    Escherichia coli
  • Amino Acid Sequence
    • Accession
    • Species
      Human
    • Sequence
      ENSFEMQKGDQNPQIAAHVISEASSKTTSVLQWAEKGYYTMSNNLVTLEN GKQLTVKRQGLYYIYAQVTFCSNREASSQAPFIASLCLKSPGRFERILLR AANTHSSAKPCGQQSIHLGGVFELQPGASVFVNVTDPSQVSHGTGFTSFG LLKL
    • Molecular weight
      18 kDa including tags
    • Amino acids
      108 to 261
    • Tags
      His tag N-Terminus
    • Additional sequence information
      Soluble full length form.

Specifications

Our Abpromise guarantee covers the use of ab173999 in the following tested applications.

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

  • Biological activity

    Measured in a cell proliferation assay using B cell-enriched peripheral blood mononuclear cells (PBMC) in the presence of rhIL­4 . The ED50 for this effect is typically 0.75-­3.2 μg/mL in the presence of 20 ng/mL of rhIL­4.

  • Applications

    SDS-PAGE

    Functional Studies

  • Endotoxin level
    < 1.000 Eu/µg
  • Purity
    >95% by SDS-PAGE .

  • Form
    Lyophilised
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Store at 4°C prior to reconstitution. Store at -20°C or -80°C. Reconstitute for long term storage.

    Information available upon request.

    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 protein in sterile deionized water to a final concentration of 1mg/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
    modifications
    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

Images

  • SDS-PAGE analysis of reduced ab1743999 stained overnight with Coomassie Blue. Protein migrates as 17.8 kDa in reduced SDS-PAGE.

     

References

ab173999 has not yet been referenced specifically in any publications.

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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