Animal-Free Recombinant Human sCD40 Ligand

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

E Coli

Above 98% as determined by SDS-PAGE Analysis.

Small volumes of sCD40 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.

CD40, a member of the TNF receptor family, is a cell surface protein expressed on B cells, dendritic cells, monocytes, thymic epithelial cells and, at low levels, on T cells. Signaling though CD40 plays an important role in the proliferation and differentiation of B cells, and is critical for immunoglobulin (Ig) class switching. The membrane-anchored CD40-Ligand is expressed almost exclusively on activated CD4+ T lymphocytes. Failure to express CD40L leads to "immunodeficiency with hyper-IgM", a disease characterized by failure to produce IgG, IgA and IgE. The human CD40L gene codes for a 261 amino acid type II transmembrane protein, which contains a 22 amino acid cytoplasmic domain, a 24 amino acid transmembrane domain, and a 215 amino acid extracellular domain. The soluble form of CD40L is an 18 kDa protein comprising the entire TNF homologous region of CD40L and is generated in vivo by an intracellular proteolytic processing of the full length CD40L. Recombinant human soluble CD40 ligand is a 16.3 kDa protein containing 149 amino acid residues comprising the receptor binding TNF-like domain of CD40L. Manufactured using all non-animal reagents.

Adaptive Immunity; Apoptosis; Angiogenesis; Inflammation; Proliferation and Cell Cycle

29,274 Da

CD40 ligand

CD40 ligand; CD40-L; CD40 antigen ligand; T-cell antigen Gp39; T-B cell-activating molecule; 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: Cell adhesion; Membrane protein, integral

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; immunoglobulin secretion; B cell differentiation; isotype switching; inflammatory response; regulation of immunoglobulin secretion; negative regulation of apoptosis

Disease: Immunodeficiency With Hyper-igm, Type 1

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