CD154, Recombinant Protein

For Research Use Only. Not for use in diagnostic procedures.

>98% by SDS PAGE and HPLC sequence analysis

Purified recombinant protein - lyophilised

Approximate Protein Concentration: 1.0 mg/ml (lot specific)

Prior to reconstitution store at 4 degree C. Following reconstitution store at -20 degree C. This product should be stored undiluted. Storage in frost-free freezers is not recommended. Avoid repeated freezing and thawing as this may denature the protein. Should this product contain a precipitate we recommend microcentrifugation before use.
Shelf Life: 3 months from date of reconstitution.

Small volumes of CD154 recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Recombinant Human CD154 is an E Coli derived protein corresponding to human CD154, also known as CD40 ligand, CD40L or TRAP. CD154 is a membrane protein expressed by activated T cells. Binding of CD154 to its ligand (CD40) on B cells induces B cell proliferation and immunoglobulin class switching.This preparation of Recombinant Human CD154 comprises the receptor binding TNF-like domain of human CD154.

Functional Assays (FN), Western Blot (WB)

Western Blotting: Minimum Dilution: 0.05 ug; Maximum Dilution: 0.5 ug

Protein Molecular Weight: 16.3kDa (149 amino acid sequence)

CD40 ligand

CD40 ligand; CD40 antigen ligand; CD40-L; T-B cell-activating molecule; T-cell antigen Gp39; TNF-related activation protein; tumor necrosis factor (ligand) superfamily member 5

CD40 ligand

CD40L; TNFSF5; TRAP; CD40-L; TRAP  [Similar Products]

CD40L_HUMAN

The protein encoded by this gene is expressed on the surface of T cells. It regulates B cell function by engaging CD40 on the B cell surface. A defect in this gene results in an inability to undergo immunoglobulin class switch and is associated with hyper-IgM syndrome. [provided by RefSeq, Jul 2008]

CD40LG: 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. Defects in CD40LG are the cause of X-linked immunodeficiency with hyper-IgM type 1 (HIGM1); 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. Belongs to the tumor necrosis factor family.

Protein type: Membrane protein, integral; Cell adhesion

Chromosomal Location of Human Ortholog: Xq26

Cellular Component: extracellular space; integral to plasma membrane; integral to membrane; plasma membrane; external side of plasma membrane

Molecular Function: cytokine activity; CD40 receptor binding; tumor necrosis factor receptor binding

Biological Process: B cell proliferation; platelet activation; regulation of immune response; leukocyte adhesion; positive regulation of interleukin-12 production; B cell differentiation; immunoglobulin secretion; isotype switching; inflammatory response; regulation of immunoglobulin secretion; negative regulation of apoptosis

Disease: Immunodeficiency With Hyper-igm, Type 1

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