P29965.1
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UniProt Primary Accession #
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UniProt Related Accession #
Molecular Weight
29,274 Da
NCBI Official Full Name
CD40 ligand
NCBI Official Synonym Full Names
CD40 ligand
NCBI Official Synonym Symbols
IGM; IMD3; TRAP; gp39; CD154; CD40L; HIGM1; T-BAM; TNFSF5; hCD40L [Similar Products]
NCBI Protein Information
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
UniProt Protein Name
CD40 ligand
UniProt Synonym Protein Names
T-cell antigen Gp39; TNF-related activation protein; TRAP; Tumor necrosis factor ligand superfamily member 5; CD_antigen: CD154Cleaved into the following 2 chains:CD40 ligand, membrane form; CD40 ligand, soluble form
UniProt Synonym Gene Names
UniProt Entry Name
CD40L_HUMAN
NCBI Summary for CD40LG
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]
UniProt Comments for CD40LG
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
Research Articles on CD40LG
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Products associated with anti-CD40LG antibody
Pathways associated with anti-CD40LG antibody
Diseases associated with anti-CD40LG antibody
Organs/Tissues associated with anti-CD40LG antibody
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