Recombinant Human TRAP/CD40L protein (Soluble) (ab194154)
Key features and details
- Expression system: HEK 293 cells
- Purity: > 95% SDS-PAGE
- Endotoxin level:
- Suitable for: HPLC, SDS-PAGE
Preparation and Storage
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Stability and Storage
Shipped at 4°C. The lyophilized protein is stable for a few weeks at room temperature. Store at -20°C long term. Avoid freeze / thaw cycle.
pH: 7.00
Constituents: 1.17% Sodium chloride, 0.003% EDTA, 98% Phosphate Buffer
Lyophilized from a 0.2 µM filtered solution. -
ReconstitutionAlways centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 µg/ml. Dissolve the lyophilized protein in 1X PBS. Aliquot the reconstituted solution to minimize freeze-thaw cycles and store at
General Info
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Alternative names
- CD 40L
- CD154
- CD40 antigen ligand
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
modificationsThe 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
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
References (0)
ab194154 has not yet been referenced specifically in any publications.
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